Question: Is the official website of the literary award that was nominated to Graham Greene (who died of natural causes) in 1978 http://www.neustadtprize.org/?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "literary award" . ?e_1 <nominated_for> ?e . ?e_1 <pred:name> "Graham Greene" . ?e_1 <manner_of_death> ?e_2 . ?e_2 <pred:name> "natural causes" .  [ <pred:fact_h> ?e_1 ; <pred:fact_r> <nominated_for> ; <pred:fact_t> ?e ] <point_in_time> ?qpv . ?qpv <pred:year> 1978 . ?e <official_website> ?pv . ?pv <pred:value> "http://www.neustadtprize.org/" .  }
Program:
function: Find
inputs: natural causes
function: Relate
dependencies: 0
inputs: manner of death
backward
function: Find
inputs: Graham Greene
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: nominated for
forward
function: QFilterYear
dependencies: 4
inputs: point in time
1978
=
function: FilterConcept
dependencies: 5
inputs: literary award
function: QueryAttr
dependencies: 6
inputs: official website
function: VerifyStr
dependencies: 7
inputs: http://www.neustadtprize.org/
Answer: yes