Question: Since when has William Orbit been in jazz?
Choices: 1986-01-01
1971-04-16
1507
1967-12-01
2005
1987-01-01
1892
1823-07-03
1542-11-30
1955-04-15
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "jazz" . ?e <famous_people> ?e_1 . ?e_1 <pred:name> "William Orbit" .  ?e <inception> ?pv .  }
Program:
function: Find
inputs: William Orbit
function: Relate
dependencies: 0
inputs: famous people
backward
function: FilterConcept
dependencies: 1
inputs: jazz
function: QueryAttr
dependencies: 2
inputs: inception
Answer: 1987-01-01