question: elevator:building:city
choices.label: A B C D
choices.text: soap:bathroom:living room water plants:creek:valley birds:beasts:forest cow:milk:supermarket
explanation: the location of the "elevator" is in the "building", and the location of the "building" is in the "city". the location of the "soap" is in the "bathroom", and both the "bathroom" and the "living room" are part of the house. the location of "water plants" is in "creek", and the location of "creek" is in "valley". both "birds" and "beasts" are animals. "birds" live in the "forest", and "beasts" live in the "forest". the position of the "birds" is not in the "beasts". "milk" is the product of "cow".
relation: elevator building R3.6
relation: building city R3.6
relation: soap bathroom R3.6
relation: bathroom living room R2.4
relation: water plants creek R3.6
relation: creek valley R3.6
relation: birds beasts R2.4
relation: cow milk R3.10