Question: What United States city is the birthplace of Amy Grant (who is the spouse of Vince Gill)?
Choices:
Walnut Creek
Miami Beach
New Haven
Compton
Franklin
Columbus
Augusta
Bay City
Oakland
Boulder
Answer: Augusta
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "city of the United States" . ?e_1 <place_of_birth> ?e . ?e_1 <pred:name> "Amy Grant" . ?e_1 <spouse> ?e_2 . ?e_2 <pred:name> "Vince Gill" .   }
Program:
function: Find
inputs: Vince Gill
function: Relate
dependencies: 0
inputs: spouse
backward
function: Find
inputs: Amy Grant
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: place of birth
forward
function: FilterConcept
dependencies: 4
inputs: city of the United States
function: What
dependencies: 5