blocks-data.json

{
 	"nodes": [
 		{ "id": "0", "group": "1" },
 		{ "id": "1", "group": "2" },
 		{ "id": "2", "group": "2" },
 		{ "id": "3", "group": "2" },
 		{ "id": "4", "group": "2" },
 		{ "id": "5", "group": "3" },
 		{ "id": "6", "group": "3" },
 		{ "id": "7", "group": "3" },
 		{ "id": "8", "group": "3" }
 	],
 	"links1": [
 		{ "source": "0", "target": "1", "id": "0"},
 		{ "source": "0", "target": "2", "id": "1"},
 		{ "source": "0", "target": "3", "id": "2"},
 		{ "source": "0", "target": "4", "id": "3"},
 		{ "source": "1", "target": "5", "id": "4"},
 		{ "source": "2", "target": "6", "id": "5"},
 		{ "source": "3", "target": "7", "id": "6"},
 		{ "source": "4", "target": "8", "id": "7"},
 		{ "source": "1", "target": "8", "id": "8"},
 		{ "source": "2", "target": "5", "id": "9"},
 		{ "source": "3", "target": "6", "id": "10"},
 		{ "source": "4", "target": "7", "id": "11"}
 	]
 }