type_hierarchy
bot
  descriptor
    nat_type
      norwegian
      ukranian
      spaniard
    ani_type
      fox
      dog
      zebra
    bev_type
      juice
      tea
      milk
  house nationality:nat_type animal:ani_type beverage:bev_type
  background house1:house house2:house house3:house
    clue
      maximality
.