Question: What method determines that 2718215 is the population of the state in the United States that is the filming location of Tombstone?
Choices: Russian Empire Census
census
United Kingdom Census 2011
UIS estimation
rated voltage
Family record booklet
United States Census
2016 Australian census
Canada 2016 Census
register office
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "state of the United States" . ?e_1 <filming_location> ?e . ?e_1 <pred:name> "Tombstone" .  ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "2718215"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <determination_method> ?qpv .  }
Program:
function: Find
inputs: Tombstone
function: Relate
dependencies: 0
inputs: filming location
forward
function: FilterConcept
dependencies: 1
inputs: state of the United States
function: QueryAttrQualifier
dependencies: 2
inputs: population
2718215
determination method
Answer: census