MineCase/data/minecraft/loot_tables/blocks/tall_grass.json

{
  "type": "minecraft:block",
  "pools": [
    {
      "rolls": 1,
      "entries": [
        {
          "type": "minecraft:alternatives",
          "children": [
            {
              "type": "minecraft:item",
              "conditions": [
                {
                  "condition": "minecraft:match_tool",
                  "predicate": {
                    "item": "minecraft:shears"
                  }
                }
              ],
              "name": "minecraft:grass"
            },
            {
              "type": "minecraft:item",
              "conditions": [
                {
                  "condition": "minecraft:survives_explosion"
                },
                {
                  "condition": "minecraft:block_state_property",
                  "block": "minecraft:tall_grass",
                  "properties": {
                    "half": "lower"
                  }
                },
                {
                  "condition": "minecraft:random_chance",
                  "chance": 0.125
                }
              ],
              "name": "minecraft:wheat_seeds"
            }
          ]
        }
      ]
    }
  ]
}