Question: What method is used to determine that 268486 is the population of Madison County whose official website is http://www.co.madison.il.us?
Choices: Family record booklet
Sixth National Population Census of the People's Republic of China
average
Pensky–Martens closed-cup test
2010 United States Census
Census
Canada 2011 Census
national estimation
Population registration in Sweden
estimation process
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:name> "Madison County" . ?e <official_website> ?pv_1 . ?pv_1 <pred:value> "http://www.co.madison.il.us" . ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "268486"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <determination_method> ?qpv .  }
Program:
function: Find
inputs: Madison County
function: FilterStr
dependencies: 0
inputs: official website
http://www.co.madison.il.us
function: QueryAttrQualifier
dependencies: 1
inputs: population
268486
determination method
Answer: estimation process