Question: Was the release year 2007 for the soundtrack album featuring a performance by hard rockers Toto?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "soundtrack album" . ?e <performer> ?e_1 . ?e_1 <pred:name> "Toto" . ?e_1 <genre> ?e_2 . ?e_2 <pred:name> "hard rock" .  ?e <publication_date> ?pv . ?pv <pred:year> 2007 .  }
Program:
function: Find
inputs: hard rock
function: Relate
dependencies: 0
inputs: genre
backward
function: Find
inputs: Toto
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: performer
backward
function: FilterConcept
dependencies: 4
inputs: soundtrack album
function: QueryAttr
dependencies: 5
inputs: publication date
function: VerifyYear
dependencies: 6
inputs: 2007
=
Answer: no