Question: When was progressive rock, famous for Mike Potnoy, created ?
Choices: 2009-05-18
1869
2014-10-24
1998-11-06
2013-11-18
2001-10-01
1792
1966-09-09
1980-01-01
1986
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "progressive rock" . ?e <famous_people> ?e_1 . ?e_1 <pred:name> "Mike Portnoy" .  ?e <start_time> ?pv .  }
Program:
function: Find
inputs: Mike Portnoy
function: Relate
dependencies: 0
inputs: famous people
backward
function: FilterConcept
dependencies: 1
inputs: progressive rock
function: QueryAttr
dependencies: 2
inputs: start time
Answer: 1980-01-01