Question: At what point in time did Essex County, neighbor to Grafton County, have a population of 6306?
Choices:
1792-01-01
1938-01-01
2002-11-01
2017-01-01
2000-05-01
1965
1768
2010-04-01
2012-10-01
2017-03-01
Program:
function: Find
inputs: Grafton County
function: Relate
dependencies: 0
inputs: shares border with
forward
function: Find
inputs: Essex County
function: And
dependencies: 1
2
function: QueryAttrQualifier
dependencies: 3
inputs: population
6306
point in time
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:name> "Essex County" . ?e_1 <shares_border_with> ?e . ?e_1 <pred:name> "Grafton County" .  ?e <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "6306"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <population> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Answer: 2010-04-01