Question: Was the town in Boston founded on 1870-04-07 ?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: no
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "town" . ?e <located_in_the_administrative_territorial_entity> ?e_1 . ?e_1 <pred:name> "Boston" .  ?e <inception> ?pv . ?pv <pred:date> "1870-04-07"^^xsd:date .  }
Program:
function: Find
inputs: Boston
function: Relate
dependencies: 0
inputs: located in the administrative territorial entity
backward
function: FilterConcept
dependencies: 1
inputs: town
function: QueryAttr
dependencies: 2
inputs: inception
function: VerifyDate
dependencies: 3
inputs: 1870-04-07
=