Question: Since when is Ben Harper, famous for contemporary folk music, married to Laura Dern ?
Choices: 2005-01-01
1953-04-06
1988-04-20
1794
1973-03-26
1993-03-16
1939-09-01
1965-09-18
1618
1804-05-18
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Ben Harper" . ?e_3 <famous_people> ?e_1 . ?e_3 <pred:name> "contemporary folk music" . ?e_2 <pred:name> "Laura Dern" . ?e_1 <spouse> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <spouse> ; <pred:fact_t> ?e_2 ] <start_time> ?qpv .  }
Program:
function: Find
inputs: contemporary folk music
function: Relate
dependencies: 0
inputs: famous people
forward
function: Find
inputs: Ben Harper
function: And
dependencies: 1
2
function: Find
inputs: Laura Dern
function: QueryRelationQualifier
dependencies: 3
4
inputs: spouse
start time
Answer: 2005-01-01