Question: At what point in time is 288466 the population of the city whose country is the Russian Empire starting in the year 1721?
Choices:
2016-12-31
1820
1943
2011-01-17
1938-12-01
2018
1977-03-28
2001-08-22
2004-01-01
2007-06-28
Program:
function: Find
inputs: Russian Empire
function: Relate
dependencies: 0
inputs: country
backward
function: QFilterYear
dependencies: 1
inputs: start time
1721
=
function: FilterConcept
dependencies: 2
inputs: city
function: QueryAttrQualifier
dependencies: 3
inputs: population
288466
point in time
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "city" . ?e <country> ?e_1 . ?e_1 <pred:name> "Russian Empire" . [ <pred:fact_h> ?e ; <pred:fact_r> <country> ; <pred:fact_t> ?e_1 ] <start_time> ?qpv_1 . ?qpv_1 <pred:year> 1721 . ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "288466"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Answer: 2018