Question: What method determines that 349679 is the population of Loudoun County?
Choices: national estimation
1860 United States Census
de facto
Canada 2016 Census
estimation process
lead-lead dating
Russian Empire Census
average
Census
resident registration
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:name> "Loudoun County" . ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "349679"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <determination_method> ?qpv .  }
Program:
function: Find
inputs: Loudoun County
function: QueryAttrQualifier
dependencies: 0
inputs: population
349679
determination method
Answer: estimation process