Question: When was Flagstaff's population 18214?
Choices:
2011-10-31
1937-12-01
1960
1754-01-01
1981-03-31
2000-09-06
2007-12-17
2018-03-01
2011-06-23
2001-06-20
Answer: 1960
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:name> "Flagstaff" . ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "18214"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: Find
inputs: Flagstaff
function: QueryAttrQualifier
dependencies: 0
inputs: population
18214
point in time