Unicopia/src/main/resources/assets/unicopia/recipes/construction_cloud.json

{
  "type": "minecraft:crafting_shaped",
  "pattern": [
     "***",
     "*#*",
     "***"
  ],
  "key": {
    "#": [
      { "item": "unicopia:cloud_block", "data": 0 }
    ],
    "*": [
      { "item": "unicopia:cloud_matter" }
    ]
  },
  "result": { "item": "unicopia:cloud", "data": 1, "count": 1 }
}