Question: When was the population 535,447 in the major city headquarters of MSV Duisburg?
Choices: 2013-01-17
2004-06-01
1987-03-30
2012-09-23
1955-09-24
1995-08-22
1990-05-01
2014-12-20
1836
1990-12-31
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "big city" . ?e_1 <headquarters_location> ?e . ?e_1 <pred:name> "MSV Duisburg" .  ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "535447"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: Find
inputs: MSV Duisburg
function: Relate
dependencies: 0
inputs: headquarters location
forward
function: FilterConcept
dependencies: 1
inputs: big city
function: QueryAttrQualifier
dependencies: 2
inputs: population
535447
point in time
Answer: 1990-12-31