Question: When did the Massachusetts county with the capital Boston have a population numbering 722,023?
Choices: 2010-04-01
1997-01-01
1633-12-01
1849-12-03
1974-12-01
1977
2018-11-24
1982-03-23
2000-06-07
1932-01-01
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "county of Massachusetts" . ?e_1 <capital_of> ?e . ?e_1 <pred:name> "Boston" .  ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "722023"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: Find
inputs: Boston
function: Relate
dependencies: 0
inputs: capital of
forward
function: FilterConcept
dependencies: 1
inputs: county of Massachusetts
function: QueryAttrQualifier
dependencies: 2
inputs: population
722023
point in time
Answer: 2010-04-01