Question: When did an industry, which is a part of North African Campaign, begin?
Choices: 1940-06-11
1998-10-07
1962-10-16
1900-05-14
2015-08-12
1830-05-13
2011-09-25
1992-07-22
1902-06-16
1995-01-03
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "industry" . ?e <part_of> ?e_1 . ?e_1 <pred:name> "North African Campaign" .  ?e <start_time> ?pv .  }
Program:
function: Find
inputs: North African Campaign
function: Relate
dependencies: 0
inputs: part of
backward
function: FilterConcept
dependencies: 1
inputs: industry
function: QueryAttr
dependencies: 2
inputs: start time
Answer: 1940-06-11