{
    "variants": {
        "half=lower": { "model": "block/tall_grass_bottom" },
        "half=upper": [   { "model": "block/tall_grass_top" },
		                  { "model": "block/tall_grass_top2" },
		                  { "model": "block/tall_grass_top3" }
						  ]
    }
}
