Question: What basketball team is headquartered in Washington?
Choices:
Boston Celtics
Los Angeles Lakers
Villanova Wildcats men's basketball
Seattle Storm
Seattle SuperSonics
Microsoft
Maccabi Tel Aviv B.C.
Brooklyn Nets
Toronto Raptors
New Orleans Pelicans
Answer: Seattle SuperSonics
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "basketball team" . ?e <headquarters_location> ?e_1 . ?e_1 <pred:name> "Washington" .   }
Program:
function: Find
inputs: Washington
function: Relate
dependencies: 0
inputs: headquarters location
backward
function: FilterConcept
dependencies: 1
inputs: basketball team
function: What
dependencies: 2