Question: How was it determined that the administrative territorial entity that is the twinned administrative body of Tashkent has a population of 666129?
Choices: de jure
United Kingdom Census 2001
Pensky–Martens closed-cup test
UIS estimation
Sixth National Population Census of the People's Republic of China
register office
hearth tax
estimation
extrapolation
United Kingdom Census 1971
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "administrative territorial entity" . ?e_1 <twinned_administrative_body> ?e . ?e_1 <pred:name> "Tashkent" .  ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "666129"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <determination_method> ?qpv .  }
Program:
function: Find
inputs: Tashkent
function: Relate
dependencies: 0
inputs: twinned administrative body
forward
function: FilterConcept
dependencies: 1
inputs: administrative territorial entity
function: QueryAttrQualifier
dependencies: 2
inputs: population
666129
determination method
Answer: register office