Question: When was the population of mayor-led Shelby County 939877?
Choices: 2010-02-20
2010-07-14
2012-07-01
1858-12-01
1930-11-01
1874-01-01
1981-03-31
2005-12-31
1997-09-17
2015-08-01
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:name> "Shelby County" . ?e <office_held_by_head_of_government> ?e_1 . ?e_1 <pred:name> "mayor" .  ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "939877"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: Find
inputs: mayor
function: Relate
dependencies: 0
inputs: office held by head of government
backward
function: Find
inputs: Shelby County
function: And
dependencies: 1
2
function: QueryAttrQualifier
dependencies: 3
inputs: population
939877
point in time
Answer: 2012-07-01