{
	"version": "2",
	"lexer_rules": [
		{
			"pattern": " |\\t|\\n",
			"pass": false,
			"name": null
		},
		{
			"pattern": "[0-9]+",
			"pass": true,
			"name": "[const]"
		},
		{
			"pattern": "\\+",
			"pass": false,
			"name": "[plus]"
		},
		{
			"pattern": "-",
			"pass": false,
			"name": "[minus]"
		},
		{
			"pattern": "\\*",
			"pass": false,
			"name": "[times]"
		},
		{
			"pattern": "/",
			"pass": false,
			"name": "[divided]"
		},
		{
			"pattern": "\\(",
			"pass": false,
			"name": "[open]"
		},
		{
			"pattern": "\\)|",
			"pass": false,
			"name": "[close]"
		}
	],
	"parser_rules": [
		{
			"label": "{constant}",
			"premise": "<expression>",
			"conclusion": [
				{"type": "terminal", "parameters": {"id": "[const]"}}
			]
		},
		{
			"label": "{product}",
			"premise": "<expression>",
			"conclusion": [
				{"type": "variable", "parameters": {"id": "<expression>"}},
				{"type": "terminal", "parameters": {"id": "[times]"}},
				{"type": "variable", "parameters": {"id": "<expression>"}}
			]
		},
		{
			"label": "{quotient}",
			"premise": "<expression>",
			"conclusion": [
				{"type": "variable", "parameters": {"id": "<expression>"}},
				{"type": "terminal", "parameters": {"id": "[divided]"}},
				{"type": "variable", "parameters": {"id": "<expression>"}}
			]
		},
		{
			"label": "{sum}",
			"premise": "<expression>",
			"conclusion": [
				{"type": "variable", "parameters": {"id": "<expression>"}},
				{"type": "terminal", "parameters": {"id": "[plus]"}},
				{"type": "variable", "parameters": {"id": "<expression>"}}
			]
		},
		{
			"label": "{difference}",
			"premise": "<expression>",
			"conclusion": [
				{"type": "variable", "parameters": {"id": "<expression>"}},
				{"type": "terminal", "parameters": {"id": "[minus]"}},
				{"type": "variable", "parameters": {"id": "<expression>"}}
			]
		},
		{
			"label": "{priorised}",
			"premise": "<expression>",
			"conclusion": [
				{"type": "terminal", "parameters": {"id": "[open]"}},
				{"type": "variable", "parameters": {"id": "<expression>"}},
				{"type": "terminal", "parameters": {"id": "[close]"}}
			]
		}
	],
	"parser_start": "<expression>"
}