Question: When did the capital that was home to Joseph Stalin have a population of 851547?
Choices: 2007-06-28
2010-01-23
1922
2009-09-02
1970
2012-04-01
1983-12-01
1927
2002-01-01
2008-04-23
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "capital" . ?e_1 <residence> ?e . ?e_1 <pred:name> "Joseph Stalin" .  ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "851547"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: Find
inputs: Joseph Stalin
function: Relate
dependencies: 0
inputs: residence
forward
function: FilterConcept
dependencies: 1
inputs: capital
function: QueryAttrQualifier
dependencies: 2
inputs: population
851547
point in time
Answer: 1970