Question: Did the director of The Third Man not start work in 1991?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <director> ?e . ?e_1 <pred:name> "The Third Man" .  ?e <work_period_(start)> ?pv . ?pv <pred:year> ?v . FILTER ( ?v != 1991 ) .  }
Program:
function: Find
inputs: The Third Man
function: Relate
dependencies: 0
inputs: director
forward
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: work period (start)
function: VerifyYear
dependencies: 3
inputs: 1991
!=