Question: Does the person who is the director of The Goodbye Girl (the one that uses the language English), have a   birth date before 1912?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <director> ?e . ?e_1 <pred:name> "The Goodbye Girl" . ?e_1 <language_of_work_or_name> ?e_2 . ?e_2 <pred:name> "English" .  ?e <date_of_birth> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1912 ) .  }
Program:
function: Find
inputs: English
function: Relate
dependencies: 0
inputs: language of work or name
backward
function: Find
inputs: The Goodbye Girl
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: director
forward
function: FilterConcept
dependencies: 4
inputs: human
function: QueryAttr
dependencies: 5
inputs: date of birth
function: VerifyYear
dependencies: 6
inputs: 1912
<
Answer: no