Question: When did Pisa's country become Italy?
Choices:
1949-01-01
2010-01-15
1861-02-18
2015-01-21
1997-08-11
1995-09-04
1789-04-21
1921-03-18
1998-08-23
2008-04-30
Answer: 1861-02-18
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Pisa" . ?e_2 <pred:name> "Italy" . ?e_1 <country> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <country> ; <pred:fact_t> ?e_2 ] <start_time> ?qpv .  }
Program:
function: Find
inputs: Pisa
function: Find
inputs: Italy
function: QueryRelationQualifier
dependencies: 0
1
inputs: country
start time