Question: When did the metro area that includes Arlington county record a population of 5100000?
Choices: 1952
2015-03-01
2009-02-11
2005-06-19
2002-01-01
1903
2016
2009-04-01
2007
1682
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "metropolitan area" . ?e_1 <part_of> ?e . ?e_1 <pred:name> "Arlington County" .  ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "5100000"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: Find
inputs: Arlington County
function: Relate
dependencies: 0
inputs: part of
forward
function: FilterConcept
dependencies: 1
inputs: metropolitan area
function: QueryAttrQualifier
dependencies: 2
inputs: population
5100000
point in time
Answer: 2016