Question: When did Washington County (the one whose area is 2819 square kilometre) have a population of 17581?
Choices: 2009-11-01
2016-06-01
2008-11-04
1925-01-01
2010-04-01
1940-04-01
2016-09-01
1971-04-15
1995-12-19
2015-05-06
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:name> "Washington County" . ?e <area> ?pv_1 . ?pv_1 <pred:unit> "square kilometre" . ?pv_1 <pred:value> "2819"^^xsd:double . ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "17581"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: Find
inputs: Washington County
function: FilterNum
dependencies: 0
inputs: area
2819 square kilometre
=
function: QueryAttrQualifier
dependencies: 1
inputs: population
17581
point in time
Answer: 2010-04-01