Question: When did  Allen Iverson become a member of the Memphis Grizzlies?
Choices:
2001-01-03
1992-07-17
2009
2012-07-24
1867-05-15
1963-07-07
1988-01-01
1974-09-13
1910-05-31
1914-10-29
Answer: 2009
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Allen Iverson" . ?e_2 <pred:name> "Memphis Grizzlies" . ?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: Allen Iverson
function: Find
inputs: Memphis Grizzlies
function: QueryRelationQualifier
dependencies: 0
1
inputs: member of sports team
start time