Question: Is 1976-07-07 the birth date of the individual nominated for a Grammy Award for Best Male Rock Vocal Performance in 1987?
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 <nominated_for> ?e_1 . ?e_1 <pred:name> "Grammy Award for Best Male Rock Vocal Performance" .  [ <pred:fact_h> ?e ; <pred:fact_r> <nominated_for> ; <pred:fact_t> ?e_1 ] <point_in_time> ?qpv . ?qpv <pred:year> 1987 . ?e <date_of_birth> ?pv . ?pv <pred:date> "1976-07-07"^^xsd:date .  }
Program:
function: Find
inputs: Grammy Award for Best Male Rock Vocal Performance
function: Relate
dependencies: 0
inputs: nominated for
backward
function: QFilterYear
dependencies: 1
inputs: point in time
1987
=
function: FilterConcept
dependencies: 2
inputs: human
function: QueryAttr
dependencies: 3
inputs: date of birth
function: VerifyDate
dependencies: 4
inputs: 1976-07-07
=