Question: When did Washington County (the one whose official website is http://co.washington.ia.us) have a population of 21942?
Choices: 2020
2016-06-01
1632
2016-10-08
2012-07-01
2013-10-31
2007-02-25
2009-11-20
1630-12-01
1865-06-17
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:name> "Washington County" . ?e <official_website> ?pv_1 . ?pv_1 <pred:value> "http://co.washington.ia.us" . ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "21942"^^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: FilterStr
dependencies: 0
inputs: official website
http://co.washington.ia.us
function: QueryAttrQualifier
dependencies: 1
inputs: population
21942
point in time
Answer: 2012-07-01