Question: What is the work period start for the person who is the screenwriter of Fahrenheit 9/11?
Choices: 2003
1989
1827
1988
1952
1928
1987
1968
1936
1970
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <screenwriter> ?e . ?e_1 <pred:name> "Fahrenheit 9/11" .  ?e <work_period_(start)> ?pv .  }
Program:
function: Find
inputs: Fahrenheit 9/11
function: Relate
dependencies: 0
inputs: screenwriter
forward
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: work period (start)
Answer: 1989