Question: When did the city that uses Persian as the official language have a population of 1887405?
Choices:
1991-03-25
2011-08-24
1992-01-01
1996-09-25
2010
1998-02-18
1990-12-31
2011-11-01
1992-01-08
2002-10-23
Answer: 1996-09-25
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "city" . ?e <official_language> ?e_1 . ?e_1 <pred:name> "Persian" .  ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "1887405"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: Find
inputs: Persian
function: Relate
dependencies: 0
inputs: official language
backward
function: FilterConcept
dependencies: 1
inputs: city
function: QueryAttrQualifier
dependencies: 2
inputs: population
1887405
point in time