{
  "parent": "twilightforest:alt/root",
  "criteria": {
    "sapling": { "trigger": "minecraft:inventory_changed", "conditions": { "items": [{ "item": "twilightforest:transformation_sapling" }]}},
    "log"    : { "trigger": "minecraft:inventory_changed", "conditions": { "items": [{ "item": "twilightforest:transformation_log" }]}},
    "wood"    : { "trigger": "minecraft:inventory_changed", "conditions": { "items": [{ "item": "twilightforest:transformation_wood" }]}},
    "leaves" : { "trigger": "minecraft:inventory_changed", "conditions": { "items": [{ "item": "twilightforest:transformation_leaves" }]}}
  },
  "requirements": [
    [ "sapling", "log", "wood", "leaves" ]
  ]
}
