Question: What capital is the Soviet Air Force headquartered in?
Choices:
Baku
Riga
Moscow
Mexico City
Lausanne
Istanbul
Sarajevo
New Delhi
Yerevan
Jaipur
Answer: Moscow
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "capital" . ?e_1 <headquarters_location> ?e . ?e_1 <pred:name> "Soviet Air Forces" .   }
Program:
function: Find
inputs: Soviet Air Forces
function: Relate
dependencies: 0
inputs: headquarters location
forward
function: FilterConcept
dependencies: 1
inputs: capital
function: What
dependencies: 2