Question: When did Helena (the one that shares border with Billings) have a population of 28190?
Choices:
2011-06-01
2010-05-26
2005-02-16
2017-12-21
1980-01-01
2010-03-03
2010-01-01
2002-01-11
2011-01-16
1980-10-01
Program:
function: Find
inputs: Billings
function: Relate
dependencies: 0
inputs: shares border with
forward
function: Find
inputs: Helena
function: And
dependencies: 1
2
function: QueryAttrQualifier
dependencies: 3
inputs: population
28190
point in time
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:name> "Helena" . ?e_1 <shares_border_with> ?e . ?e_1 <pred:name> "Billings" .  ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "28190"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Answer: 2010-01-01