Question: When was the rock music influenced by classical music established?
Choices: 1978-01-01
1971-08-14
1878-01-01
2002-05-20
1245-01-01
1972
1977-06-16
1821-08-10
1863-05-23
1300
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "rock music" . ?e <influenced_by> ?e_1 . ?e_1 <pred:name> "classical music" .  ?e <inception> ?pv .  }
Program:
function: Find
inputs: classical music
function: Relate
dependencies: 0
inputs: influenced by
backward
function: FilterConcept
dependencies: 1
inputs: rock music
function: QueryAttr
dependencies: 2
inputs: inception
Answer: 1978-01-01