Question: What film did the person with the  CANTIC-ID a11921614 appear in?
Choices: All the President's Men
Bird
Mary Shelley
Frost/Nixon
Howl
Arthur Conan Doyle
Steve Jobs
The Way We Were
Hyde Park on Hudson
Bend It Like Beckham
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "film" . ?e <main_subject> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "human" . ?e_1 <CANTIC-ID> ?pv . ?pv <pred:value> "a11921614" .   }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: CANTIC-ID
a11921614
function: FilterConcept
dependencies: 1
inputs: human
function: Relate
dependencies: 2
inputs: main subject
backward
function: FilterConcept
dependencies: 3
inputs: film
function: What
dependencies: 4
Answer: Howl