{
  "type": "minecraft:simple_block",
  "to_place": {
    "type": "minecraft:weighted",
    "entries": [
      {
        "data": "minecraft:short_dry_grass",
        "weight": 1
      },
      {
        "data": "minecraft:tall_dry_grass",
        "weight": 1
      }
    ]
  }
}