Question: When did the big city that is the twinned administrative body of Chicago (the one whose population is 2722389) (the start time of this statement is 1987) have an area of 21513 hectares?
Choices: 1949-05-23
1753-01-01
1866
1948-01-01
1834-12-03
2015-12-31
1450-01-01
2018-01-12
1955-09-24
1860-01-01
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "big city" . ?e <twinned_administrative_body> ?e_1 . ?e_1 <pred:name> "Chicago" . ?e_1 <population> ?pv_1 . ?pv_1 <pred:unit> "1" . ?pv_1 <pred:value> "2722389"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <twinned_administrative_body> ; <pred:fact_t> ?e_1 ] <start_time> ?qpv_1 . ?qpv_1 <pred:year> 1987 . ?e <area> ?pv . ?pv <pred:unit> "hectare" . ?pv <pred:value> "21513"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <area> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: Find
inputs: Chicago
function: FilterNum
dependencies: 0
inputs: population
2722389
=
function: Relate
dependencies: 1
inputs: twinned administrative body
backward
function: QFilterYear
dependencies: 2
inputs: start time
1987
=
function: FilterConcept
dependencies: 3
inputs: big city
function: QueryAttrQualifier
dependencies: 4
inputs: area
21513 hectare
point in time
Answer: 2015-12-31