Question: Did the person born in Poughkeepsie not die on 1807-07-01?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: no
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <place_of_birth> ?e_1 . ?e_1 <pred:name> "Poughkeepsie" .  ?e <date_of_death> ?pv . ?pv <pred:date> "1807-07-01"^^xsd:date .  }
Program:
function: Find
inputs: Poughkeepsie
function: Relate
dependencies: 0
inputs: place of birth
backward
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: date of death
function: VerifyDate
dependencies: 3
inputs: 1807-07-01
=