Question: Is the publication date of activity that is based on Batman Forever (the one whose composer is Elliot Goldenthal) before 2012 ?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "activity" . ?e <based_on> ?e_1 . ?e_1 <pred:name> "Batman Forever" . ?e_1 <composer> ?e_2 . ?e_2 <pred:name> "Elliot Goldenthal" .  ?e <publication_date> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 2012 ) .  }
Program:
function: Find
inputs: Elliot Goldenthal
function: Relate
dependencies: 0
inputs: composer
backward
function: Find
inputs: Batman Forever
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: based on
backward
function: FilterConcept
dependencies: 4
inputs: activity
function: QueryAttr
dependencies: 5
inputs: publication date
function: VerifyYear
dependencies: 6
inputs: 2012
<
Answer: yes