Question: When did the Michigan county which has the captital Port Huron have a population of 161508?
Choices: 2016-12-31
1887-01-01
1139
1571
2003-10-01
1985-03-05
1363
2016-10-01
1959
2011-07-01
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "county of Michigan" . ?e <capital> ?e_1 . ?e_1 <pred:name> "Port Huron" .  ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "161508"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: Find
inputs: Port Huron
function: Relate
dependencies: 0
inputs: capital
backward
function: FilterConcept
dependencies: 1
inputs: county of Michigan
function: QueryAttrQualifier
dependencies: 2
inputs: population
161508
point in time
Answer: 2011-07-01