Question: Which person served as producer of the Chicago published in 1957?
Choices: Cecil B. DeMille
Dave Thomas
George Stevens
Max Fleischer
Harvey Weinstein
Tomoyuki Tanaka
Sylvester Stallone
Nelson Riddle
Julie Benz
Bob Weinstein
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <producer> ?e . ?e_1 <pred:name> "Chicago" . ?e_1 <publication_date> ?pv . ?pv <pred:year> 1957 .   }
Program:
function: Find
inputs: Chicago
function: FilterYear
dependencies: 0
inputs: publication date
1957
=
function: Relate
dependencies: 1
inputs: producer
forward
function: FilterConcept
dependencies: 2
inputs: human
function: What
dependencies: 3
Answer: Nelson Riddle