Question: What is the start date that Joseph Stalin uses the Russian language?
Choices:
1975-10-10
2001-11-06
1992-10-31
1864-10-31
1888-01-01
2012-02-03
2017-02-09
1949-12-07
2006-07-07
1978-09-12
Answer: 1888-01-01
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e_1 <pred:name> "Joseph Stalin" . ?e_2 <pred:name> "Russian" . ?e_1 <languages_spoken,_written_or_signed> ?e_2 . [ <pred:fact_h> ?e_1 ; <pred:fact_r> <languages_spoken,_written_or_signed> ; <pred:fact_t> ?e_2 ] <start_time> ?qpv .  }
Program:
function: Find
inputs: Joseph Stalin
function: Find
inputs: Russian
function: QueryRelationQualifier
dependencies: 0
1
inputs: languages spoken, written or signed
start time