Question: For the city/town whose official name is Lviv (the start time of this statement is 1991), what is the time point of its population of 727968?
Choices: 2010-07-01
1571
2017-12-08
2012-12-19
2008-09-03
1927
2017-01-01
2011-03-01
1995
2011-01-30
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "city/town" . ?e <official_name> ?pv_1 . ?pv_1 <pred:value> "Lviv" . [ <pred:fact_h> ?e ; <pred:fact_r> <official_name> ; <pred:fact_t> ?pv_1 ] <start_time> ?qpv_1 . ?qpv_1 <pred:year> 1991 . ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "727968"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: official name
Lviv
function: QFilterYear
dependencies: 1
inputs: start time
1991
=
function: FilterConcept
dependencies: 2
inputs: city/town
function: QueryAttrQualifier
dependencies: 3
inputs: population
727968
point in time
Answer: 2017-01-01