Question: At what point in time was the population of Washington County, Pennsylvania, equal to 208451?
Choices: 2009-02-11
1966-08-19
1994-05-17
2004-08-05
1922-01-01
1831
1931
2012-07-01
1897
2009-06-01
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:name> "Washington County" . ?e <located_in_the_administrative_territorial_entity> ?e_1 . ?e_1 <pred:name> "Pennsylvania" .  ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "208451"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: Find
inputs: Pennsylvania
function: Relate
dependencies: 0
inputs: located in the administrative territorial entity
backward
function: Find
inputs: Washington County
function: And
dependencies: 1
2
function: QueryAttrQualifier
dependencies: 3
inputs: population
208451
point in time
Answer: 2012-07-01