Question: How was it determined that the California county that has the capital Oakland has a population of 1638215?
Choices: 2016 Australian census
estimation
demographic balance
Canada 2016 Census
average
Yemen General Census of Population, Housing and Establishments 2004
Census
United Kingdom Census 2011
2000 United States Census
de facto
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "county of California" . ?e_1 <capital_of> ?e . ?e_1 <pred:name> "Oakland" .  ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "1638215"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <determination_method> ?qpv .  }
Program:
function: Find
inputs: Oakland
function: Relate
dependencies: 0
inputs: capital of
forward
function: FilterConcept
dependencies: 1
inputs: county of California
function: QueryAttrQualifier
dependencies: 2
inputs: population
1638215
determination method
Answer: demographic balance