diff --git a/misc/conv b/misc/conv
new file mode 100755
index 0000000..bcd0f01
--- /dev/null
+++ b/misc/conv
@@ -0,0 +1,21 @@
+#!/usr/bin/env node
+
+function main(args)
+{
+	// args
+	const path_transform = ((args.length >= 0) ? args.shift() : "transform.js");
+	const path_data = ((args.length >= 0) ? args.shift() : "data.json");
+	
+	// exec
+	const _fs = require("fs");
+	const data = JSON.parse(_fs.readFileSync(path_data).toString());
+	const transformation_code = _fs.readFileSync(path_transform).toString()
+	const sd = eval(transformation_code)(data);
+	
+	// output
+	const output = (JSON.stringify(sd, undefined, "\t") + "\n");
+	process.stdout.write(output);
+}
+
+
+main(process.argv.slice(2));
diff --git a/misc/description.json b/misc/description.json
deleted file mode 100644
index 50fb34a..0000000
--- a/misc/description.json
+++ /dev/null
@@ -1,23 +0,0 @@
-{
-	"group": {
-		"attributes": [
-			"members"
-		]
-	},
-	"section": {
-		"attributes": [
-			"title",
-			"content"
-		]
-	},
-	"list": {
-		"attributes": [
-			"items"
-		]
-	},
-	"text": {
-		"attributes": [
-			"content"
-		]
-	}
-}
diff --git a/misc/example-polyhedra.md b/misc/example-polyhedra.md
deleted file mode 100644
index caf331b..0000000
--- a/misc/example-polyhedra.md
+++ /dev/null
@@ -1,36 +0,0 @@
-# Polyhedra
-
-## Tetrahedron
-
-- vertices: 4
-- faces: 4
-- edges: 6
-
-
-## Hexahedron
-
-- vertices: 8
-- faces: 6
-- edges: 12
-
-
-## Octahedron
-
-- vertices: 6
-- faces: 8
-- edges: 12
-
-
-## Dodecahedron
-
-- vertices: 20
-- faces: 12
-- edges: 30
-
-
-## Icosahedron
-
-- vertices: 12
-- faces: 20
-- edges: 30
-
diff --git a/misc/example-polyhedra.sd.json b/misc/example-polyhedra.sd.json
deleted file mode 100644
index 1c10b26..0000000
--- a/misc/example-polyhedra.sd.json
+++ /dev/null
@@ -1,207 +0,0 @@
-{
-	"definitions": {
-		"tetrahedron": {
-			"kind": "section",
-			"data": {
-				"title": "Tetrahedron",
-				"content": {
-					"kind": "list",
-					"data": {
-						"items": [
-							{
-								"kind": "text",
-								"data": {
-									"content": "vertices: 4"
-								}
-							},
-							{
-								"kind": "text",
-								"data": {
-									"content": "faces: 4"
-								}
-							},
-							{
-								"kind": "text",
-								"data": {
-									"content": "edges: 6"
-								}
-							}
-						]
-					}
-				}
-			}
-		},
-		"hexahedron": {
-			"kind": "section",
-			"data": {
-				"title": "Hexahedron",
-				"content": {
-					"kind": "list",
-					"data": {
-						"items": [
-							{
-								"kind": "text",
-								"data": {
-									"content": "vertices: 6"
-								}
-							},
-							{
-								"kind": "text",
-								"data": {
-									"content": "faces: 8"
-								}
-							},
-							{
-								"kind": "text",
-								"data": {
-									"content": "edges: 12"
-								}
-							}
-						]
-					}
-				}
-			}
-		},
-		"octahedron": {
-			"kind": "section",
-			"data": {
-				"title": "Octahedron",
-				"content": {
-					"kind": "list",
-					"data": {
-						"items": [
-							{
-								"kind": "text",
-								"data": {
-									"content": "vertices: 6"
-								}
-							},
-							{
-								"kind": "text",
-								"data": {
-									"content": "faces: 8"
-								}
-							},
-							{
-								"kind": "text",
-								"data": {
-									"content": "edges: 12"
-								}
-							}
-						]
-					}
-				}
-			}
-		},
-		"dodecahedron": {
-			"kind": "section",
-			"data": {
-				"title": "Dodecahedron",
-				"content": {
-					"kind": "list",
-					"data": {
-						"items": [
-							{
-								"kind": "text",
-								"data": {
-									"content": "vertices: 20"
-								}
-							},
-							{
-								"kind": "text",
-								"data": {
-									"content": "faces: 12"
-								}
-							},
-							{
-								"kind": "text",
-								"data": {
-									"content": "edges: 30"
-								}
-							}
-						]
-					}
-				}
-			}
-		},
-		"icosahedron": {
-			"kind": "section",
-			"data": {
-				"title": "Icosahedron",
-				"content": {
-					"kind": "list",
-					"data": {
-						"items": [
-							{
-								"kind": "text",
-								"data": {
-									"content": "vertices: 12"
-								}
-							},
-							{
-								"kind": "text",
-								"data": {
-									"content": "faces: 20"
-								}
-							},
-							{
-								"kind": "text",
-								"data": {
-									"content": "edges: 30"
-								}
-							}
-						]
-					}
-				}
-			}
-		}
-	},
-	"content": {
-		"title": "Polyhedra",
-		"main": {
-			"kind": "section",
-			"data": {
-				"title": "Polyhedra",
-				"content": {
-					"kind": "group",
-					"data": {
-						"members": [
-							{
-								"kind": "reference",
-								"data": {
-									"name": "tetrahedron"
-								}
-							},
-							{
-								"kind": "reference",
-								"data": {
-									"name": "hexahedron"
-								}
-							},
-							{
-								"kind": "reference",
-								"data": {
-									"name": "octahedron"
-								}
-							},
-							{
-								"kind": "reference",
-								"data": {
-									"name": "dodecahedron"
-								}
-							},
-							{
-								"kind": "reference",
-								"data": {
-									"name": "icosahedron"
-								}
-							}
-						]
-					}
-				}
-			}
-		}
-
-	}
-}
-
diff --git a/misc/example-simple.sd.json b/misc/example-simple.sd.json
deleted file mode 100644
index f89df34..0000000
--- a/misc/example-simple.sd.json
+++ /dev/null
@@ -1,19 +0,0 @@
-{
-	"kind": "group",
-	"data": {
-		"members": [
-			{
-				"kind": "text",
-				"data": {
-					"content": "foo"
-				}
-			},
-			{
-				"kind": "text",
-				"data": {
-					"content": "bar"
-				}
-			}
-		]
-	}
-}
diff --git a/misc/examples/polyhedra/data.json b/misc/examples/polyhedra/data.json
new file mode 100644
index 0000000..699f2f4
--- /dev/null
+++ b/misc/examples/polyhedra/data.json
@@ -0,0 +1,41 @@
+{
+	"stock": {
+		"tetrahedron": {
+			"name": "Tetrahedron",
+			"vertices": 4,
+			"faces": 4,
+			"edges": 6
+		},
+		"hexahedron": {
+			"name": "Hexahedron",
+			"vertices": 8,
+			"faces": 6,
+			"edges": 12
+		},
+		"octahedron": {
+			"name": "Octahedron",
+			"vertices": 6,
+			"faces": 8,
+			"edges": 12
+		},
+		"dodecahedron": {
+			"name": "Dodecahedron",
+			"vertices": 20,
+			"faces": 12,
+			"edges": 30
+		},
+		"icosahedron": {
+			"name": "Icosahedron",
+			"vertices": 12,
+			"faces": 20,
+			"edges": 30
+		}
+	},
+	"order": [
+		"tetrahedron",
+		"hexahedron",
+		"octahedron",
+		"dodecahedron",
+		"icosahedron"
+	]
+}
diff --git a/misc/examples/polyhedra/transform-default.js b/misc/examples/polyhedra/transform-default.js
new file mode 100644
index 0000000..af83420
--- /dev/null
+++ b/misc/examples/polyhedra/transform-default.js
@@ -0,0 +1,51 @@
+(data) => ({
+	"definitions": {
+	},
+	"content": {
+		"title": "Polyhedra",
+		"main": {
+			"kind": "section",
+			"data": {
+				"title": "Polyhedra",
+				"content": {
+					"kind": "group",
+					"data": {
+						"members": data.order.map(
+							name => ({
+								"kind": "section",
+								"data": {
+									"title": data.stock[name].name,
+									"content": {
+										"kind": "list",
+										"data": {
+											"items": [
+												{
+													"kind": "text",
+													"data": {
+														"content": ("vertices: " + data.stock[name].vertices.toFixed(0)),
+													}
+												},
+												{
+													"kind": "text",
+													"data": {
+														"content": ("faces: " + data.stock[name].faces.toFixed(0)),
+													}
+												},
+												{
+													"kind": "text",
+													"data": {
+														"content": ("edges: " + data.stock[name].edges.toFixed(0)),
+													}
+												},
+											]
+										}
+									}
+								}
+							})
+						)
+					}
+				}
+			}
+		}
+	}
+})
diff --git a/misc/examples/polyhedra/transform-table.js b/misc/examples/polyhedra/transform-table.js
new file mode 100644
index 0000000..6693bb9
--- /dev/null
+++ b/misc/examples/polyhedra/transform-table.js
@@ -0,0 +1,72 @@
+(data) => ({
+	"definitions": {
+	},
+	"content": {
+		"title": "Polyhedra",
+		"main": {
+			"kind": "section",
+			"data": {
+				"title": "Polyhedra",
+				"content": {
+					"kind": "table",
+					"data": {
+						"head": [
+							{
+								"kind": "text",
+								"data": {
+									"content": "name"
+								}
+							},
+							{
+								"kind": "text",
+								"data": {
+									"content": "vertices"
+								}
+							},
+							{
+								"kind": "text",
+								"data": {
+									"content": "faces"
+								}
+							},
+							{
+								"kind": "text",
+								"data": {
+									"content": "edges"
+								}
+							}
+						],
+						"rows": data.order.map(
+							name => ([
+								{
+									"kind": "text",
+									"data": {
+										"content": data.stock[name].name
+									}
+								},
+								{
+									"kind": "code",
+									"data": {
+										"content": data.stock[name].vertices.toFixed(0)
+									}
+								},
+								{
+									"kind": "code",
+									"data": {
+										"content": data.stock[name].faces.toFixed(0)
+									}
+								},
+								{
+									"kind": "code",
+									"data": {
+										"content": data.stock[name].edges.toFixed(0)
+									}
+								}
+							])
+						),
+					}
+				}
+			}
+		}
+	}
+})
diff --git a/misc/notes.md b/misc/notes.md
deleted file mode 100644
index 89b5d5c..0000000
--- a/misc/notes.md
+++ /dev/null
@@ -1,15 +0,0 @@
-- coproduct `element`
-	- group
-	- section
-	- list
-	- …
-- coproduct `output`
-	- (markdown)
-	- html
-	- tex
-	- odt
-	- …
-- coproduct `input`
-	- markdown
-
-	
diff --git a/source/main.ts b/source/main.ts
index cd55061..23bab5e 100644
--- a/source/main.ts
+++ b/source/main.ts
@@ -1,8 +1,11 @@
+declare var console;
+
 async function main(args_raw : Array<string>) : Promise<void>
 {
 	// args
 	const arg_handler : lib_plankton.args.class_handler = new lib_plankton.args.class_handler(
 		{
+			/*
 			"input": lib_plankton.args.class_argument.positional({
 				"index": 0,
 				"type": lib_plankton.args.enum_type.string,
@@ -11,6 +14,7 @@ async function main(args_raw : Array<string>) : Promise<void>
 				"info": "path to input file",
 				"name": "input",
 			}),
+			 */
 			"output": lib_plankton.args.class_argument.volatile({
 				"indicators_long": ["output"],
 				"indicators_short": ["o"],
@@ -46,7 +50,8 @@ async function main(args_raw : Array<string>) : Promise<void>
 	}
 	else
 	{
-		const document_raw : string = lib_plankton.json.decode(await lib_plankton.file.read(args.input))
+		const document_raw : string = lib_plankton.json.decode(await lib_plankton.file/*.read(args.input)*/.read_stdin());
+		
 		const document : type_document = type_document.from_raw(document_raw);
 		// let object : type_object = object_make(document_raw["content"]["main"]);
 		
diff --git a/source/objects/implementations/code.ts b/source/objects/implementations/code.ts
new file mode 100644
index 0000000..4e63031
--- /dev/null
+++ b/source/objects/implementations/code.ts
@@ -0,0 +1,30 @@
+
+/**
+ */
+type type_object_code_data = {
+	content : string;
+};
+
+
+/**
+ */
+class type_object_code implements type_object
+{
+	public readonly kind : string = "code";
+	public readonly data : type_object_code_data;
+	public constructor(data : type_object_code_data) {this.data = data;}
+}
+
+
+/**
+ */
+object_kind_register(
+	"code",
+	(data) => (
+		new type_object_code(
+			{
+				"content": data["content"],
+			}
+		)
+	)
+);
diff --git a/source/objects/implementations/link.ts b/source/objects/implementations/link.ts
new file mode 100644
index 0000000..c21d6b7
--- /dev/null
+++ b/source/objects/implementations/link.ts
@@ -0,0 +1,32 @@
+
+/**
+ */
+type type_object_link_data = {
+	target : string;
+	label : (null | string);
+};
+
+
+/**
+ */
+class type_object_link implements type_object
+{
+	public readonly kind : string = "link";
+	public readonly data : type_object_link_data;
+	public constructor(data : type_object_link_data) {this.data = data;}
+}
+
+
+/**
+ */
+object_kind_register(
+	"link",
+	(data) => (
+		new type_object_link(
+			{
+				"target": data["target"],
+				"label": (data["label"] ?? null),
+			}
+		)
+	)
+);
diff --git a/source/objects/implementations/table.ts b/source/objects/implementations/table.ts
new file mode 100644
index 0000000..f6536cf
--- /dev/null
+++ b/source/objects/implementations/table.ts
@@ -0,0 +1,33 @@
+
+/**
+ */
+type type_object_table_data = {
+	head : (null | Array<type_object>);
+	rows : Array<Array<type_object>>;
+};
+
+
+/**
+ * @todo check sanity (length of head and rows)
+ */
+class type_object_table implements type_object
+{
+	public readonly kind : string = "table";
+	public readonly data : type_object_table_data;
+	public constructor(data : type_object_table_data) {this.data = data;}
+}
+
+
+/**
+ */
+object_kind_register(
+	"table",
+	(data) => (
+		new type_object_table(
+			{
+				"head": data["head"],
+				"rows": data["rows"],
+			}
+		)
+	)
+);
diff --git a/source/outputs/implementations/html.ts b/source/outputs/implementations/html.ts
index 3c8834f..357803b 100644
--- a/source/outputs/implementations/html.ts
+++ b/source/outputs/implementations/html.ts
@@ -36,6 +36,27 @@ class type_output_html implements type_output<string>
 						new lib_plankton.xml.class_node_text(content),
 					]
 				),
+				"code": ({"content": content}) => new lib_plankton.xml.class_node_complex(
+					"code",
+					{
+						"class": "sd-code",
+					},
+					[
+						new lib_plankton.xml.class_node_text(content),
+					]
+				),
+				"link": ({"target": target, "label": label}) => new lib_plankton.xml.class_node_complex(
+					"a",
+					{
+						"class": "sd-link",
+						"href": target,
+					},
+					(
+						(label === null)
+						? []
+						: [new lib_plankton.xml.class_node_text(label)]
+					)
+				),
 				"group": ({"members": members}) => new lib_plankton.xml.class_node_complex(
 					"div",
 					{
@@ -100,6 +121,81 @@ class type_output_html implements type_output<string>
 						)
 					),
 				),
+				"table": ({"head": head, "rows": rows}) => new lib_plankton.xml.class_node_complex(
+					"table",
+					{
+						"class": "sd-table",
+					},
+					(
+						[]
+						.concat(
+							(head === null)
+							? []
+							: [
+								new lib_plankton.xml.class_node_complex(
+									"thead",
+									{},
+									[
+										new lib_plankton.xml.class_node_complex(
+											"tr",
+											{},
+											(
+												head.map(
+													cell => new lib_plankton.xml.class_node_complex(
+														"th",
+														{},
+														[
+															this.render_object_internal(
+																cell,
+																{
+																	"level": options.level,
+																	"depth": (options.depth + 1),
+																}
+															),
+														]
+													)
+												)
+											)
+										),
+									]
+								),
+							]
+						)
+						.concat(
+							[
+								new lib_plankton.xml.class_node_complex(
+									"tbody",
+									{},
+									(
+										rows.map(
+											row => new lib_plankton.xml.class_node_complex(
+												"tr",
+												{},
+												(
+													row.map(
+														cell => new lib_plankton.xml.class_node_complex(
+															"td",
+															{},
+															[
+																this.render_object_internal(
+																	cell,
+																	{
+																		"level": options.level,
+																		"depth": (options.depth + 1),
+																	}
+																),
+															]
+														)
+													)
+												)
+											)
+										)
+									)
+								)
+							]
+						)
+					),
+				),
 			},
 			{
 				"fallback": (object) => new lib_plankton.xml.class_node_complex(
diff --git a/tools/makefile b/tools/makefile
index ef34c32..93e952f 100644
--- a/tools/makefile
+++ b/tools/makefile
@@ -26,9 +26,12 @@ ${dir_temp}/sd-unlinked.js: \
 		${dir_source}/base.ts \
 		${dir_source}/objects/base.ts \
 		${dir_source}/objects/implementations/text.ts \
+		${dir_source}/objects/implementations/code.ts \
+		${dir_source}/objects/implementations/link.ts \
 		${dir_source}/objects/implementations/group.ts \
 		${dir_source}/objects/implementations/section.ts \
 		${dir_source}/objects/implementations/list.ts \
+		${dir_source}/objects/implementations/table.ts \
 		${dir_source}/document.ts \
 		${dir_source}/outputs/base.ts \
 		${dir_source}/outputs/implementations/json.ts \