Question: At what point in time was the population of San Salvador equal to 540898?
Choices: 1918-01-01
1835-01-01
1991-03-07
2009
1665-09-28
1915
2005
2000-05-10
2001
1970-04-01
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:name> "San Salvador" . ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "540898"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: Find
inputs: San Salvador
function: QueryAttrQualifier
dependencies: 0
inputs: population
540898
point in time
Answer: 2009