Question: Until which date was Claudette Colbert married to Norman Foster, who died on 1976-07-07?
Choices:
1935-01-01
1997-07-12
1991-11-10
1940-06-28
2005-06-06
1897-10-01
1994-02-27
1814-05-29
1998-05-14
1875
Program:
function: Find
inputs: Claudette Colbert
function: Find
inputs: Norman Foster
function: FilterDate
dependencies: 1
inputs: date of death
1976-07-07
=
function: QueryRelationQualifier
dependencies: 0
2
inputs: spouse
end time
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Claudette Colbert" . ?e_2 <pred:name> "Norman Foster" . ?e_2 <date_of_death> ?pv . ?pv <pred:date> "1976-07-07"^^xsd:date . ?e_1 <spouse> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <spouse> ; <pred:fact_t> ?e_2 ] <end_time> ?qpv .  }
Answer: 1935-01-01