Question: When was the population of Niagara Falls (the one whose Statistics Canada Geographic code is 3526043) 82997?
Choices:
1976-05-17
2011-01-01
1915
2014-07-01
2009-08-05
1919
2010-10-20
2016-09-01
1936-01-01
2003-12-15
Answer: 2011-01-01
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:name> "Niagara Falls" . ?e <Statistics_Canada_Geographic_code> ?pv_1 . ?pv_1 <pred:value> "3526043" . ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "82997"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: Find
inputs: Niagara Falls
function: FilterStr
dependencies: 0
inputs: Statistics Canada Geographic code
3526043
function: QueryAttrQualifier
dependencies: 1
inputs: population
82997
point in time