Question: When was the mechanical wave whose subreddit is electronica conceived?
Choices: 1994-04-27
1901
1965-12-28
1973
1920
1992-02-07
1851-03-31
1967-03-16
1970
1824-12-29
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "mechanical wave" . ?e <subreddit> ?pv_1 . ?pv_1 <pred:value> "electronica" . ?e <inception> ?pv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: subreddit
electronica
function: FilterConcept
dependencies: 1
inputs: mechanical wave
function: QueryAttr
dependencies: 2
inputs: inception
Answer: 1970