Question: When did  John Hughes (the one that is a member of New York Rangers) become a member of the Edmonton Oilers?
Choices: 1949-12-31
2005-11-11
1968-09-19
1927
1825-03-04
1932-02-25
1978
1915
2006-02-24
2006-06-25
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "John Hughes" . ?e_1 <member_of_sports_team> ?e_3 . ?e_3 <pred:name> "New York Rangers" . ?e_2 <pred:name> "Edmonton Oilers" . ?e_1 <member_of_sports_team> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <member_of_sports_team> ; <pred:fact_t> ?e_2 ] <start_time> ?qpv .  }
Program:
function: Find
inputs: New York Rangers
function: Relate
dependencies: 0
inputs: member of sports team
backward
function: Find
inputs: John Hughes
function: And
dependencies: 1
2
function: Find
inputs: Edmonton Oilers
function: QueryRelationQualifier
dependencies: 3
4
inputs: member of sports team
start time
Answer: 1978