Question: What is the video for the visual artwork that has Mitchell Leisen as a costume designer ?
Choices: ROWING Women's Single Sculls Final - 28th Summer Universiade 2015 Gwangju.webm
Cinderella Original 1950 Trailer.webm
Algiers (1938).webm
The Three Musketeers (1921).webm
Three Stooges Malice In The Palace.ogv
Robin Hood (1922).webm
The Hunchback of Notre Dame 1923.webm
Sherlock Holmes (1922).webm
Gullivers travels1939.ogv
Mr. Smith Goes to Washington trailer (1939).webm
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "visual artwork" . ?e <costume_designer> ?e_1 . ?e_1 <pred:name> "Mitchell Leisen" .  ?e <video> ?pv .  }
Program:
function: Find
inputs: Mitchell Leisen
function: Relate
dependencies: 0
inputs: costume designer
backward
function: FilterConcept
dependencies: 1
inputs: visual artwork
function: QueryAttr
dependencies: 2
inputs: video
Answer: Robin Hood (1922).webm