Question: Was the person who received Hugo Award for Best Novel (the point in time of this statement is 1991) not born in 1953?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <award_received> ?e_1 . ?e_1 <pred:name> "Hugo Award for Best Novel" .  [ <pred:fact_h> ?e ; <pred:fact_r> <award_received> ; <pred:fact_t> ?e_1 ] <point_in_time> ?qpv . ?qpv <pred:year> 1991 . ?e <date_of_birth> ?pv . ?pv <pred:year> ?v . FILTER ( ?v != 1953 ) .  }
Program:
function: Find
inputs: Hugo Award for Best Novel
function: Relate
dependencies: 0
inputs: award received
backward
function: QFilterYear
dependencies: 1
inputs: point in time
1991
=
function: FilterConcept
dependencies: 2
inputs: human
function: QueryAttr
dependencies: 3
inputs: date of birth
function: VerifyYear
dependencies: 4
inputs: 1953
!=
Answer: yes