Question: Does the screenwriter of Beverly Hills, 90210 have a date of birth of 1968-02-21?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <screenwriter> ?e . ?e_1 <pred:name> "Beverly Hills, 90210" .  ?e <date_of_birth> ?pv . ?pv <pred:date> "1968-02-21"^^xsd:date .  }
Program:
function: Find
inputs: Beverly Hills, 90210
function: Relate
dependencies: 0
inputs: screenwriter
forward
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: date of birth
function: VerifyDate
dependencies: 3
inputs: 1968-02-21
=
Answer: no