Question: When did the pop rock whose famous people includes Bill Berry (who has the occupation of record producer) begin?
Choices:
1965-01-01
1973-03-03
1900
1829-10-01
1971-01-01
1222
1851-01-01
1958-08-12
1974-04-24
1297
Answer: 1965-01-01
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "pop rock" . ?e <famous_people> ?e_1 . ?e_1 <pred:name> "Bill Berry" . ?e_1 <occupation> ?e_2 . ?e_2 <pred:name> "record producer" .  ?e <inception> ?pv .  }
Program:
function: Find
inputs: record producer
function: Relate
dependencies: 0
inputs: occupation
backward
function: Find
inputs: Bill Berry
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: famous people
backward
function: FilterConcept
dependencies: 4
inputs: pop rock
function: QueryAttr
dependencies: 5
inputs: inception