Question: What is the postal code of the town that is the twinned administrative body of Mainz?
Choices:
48640–48686
39104–39130
91001
227101–227132
48109
13004
SS1
WD
89701-89706, 89711-89714, 89721
20912
Answer: WD
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "town" . ?e_1 <twinned_administrative_body> ?e . ?e_1 <pred:name> "Mainz" .  ?e <postal_code> ?pv .  }
Program:
function: Find
inputs: Mainz
function: Relate
dependencies: 0
inputs: twinned administrative body
forward
function: FilterConcept
dependencies: 1
inputs: town
function: QueryAttr
dependencies: 2
inputs: postal code