Question: When was the population of Clinton County which shares  a border with Center County equal to 39441?
Choices:
1999-08-18
1978-12-01
1821-01-01
2013-05-09
1700-01-01
2011-05-01
1511
1971
2015-01-01
1812
Answer: 2015-01-01
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:name> "Clinton County" . ?e <shares_border_with> ?e_1 . ?e_1 <pred:name> "Centre County" .  ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "39441"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: Find
inputs: Centre County
function: Relate
dependencies: 0
inputs: shares border with
backward
function: Find
inputs: Clinton County
function: And
dependencies: 1
2
function: QueryAttrQualifier
dependencies: 3
inputs: population
39441
point in time