{
  "conditions": [{
    "type": "forge:mod_loaded",
    "modid": "thaumcraft"
  }],
  "parent": "twilightforest:alt/root",
  "criteria": {
    "thaumonomicon"  : { "trigger": "minecraft:inventory_changed", "conditions": { "items": [{ "item": "thaumcraft:thaumonomicon" }]}},
    "crystal_essence": { "trigger": "minecraft:inventory_changed", "conditions": { "items": [{ "item": "thaumcraft:crystal_essence" }]}},
    "thaumometer"    : { "trigger": "minecraft:inventory_changed", "conditions": { "items": [{ "item": "thaumcraft:thaumometer" }]}}
  },
  "requirements": [
    [ "thaumonomicon", "crystal_essence", "thaumometer" ]
  ]
}