Question: What is the visual art form of black and white titled Christopher Columbus
Choices:
Christopher Columbus
Cleopatra
Pleasantville
The Town
The Phantom
A Prairie Home Companion
Hamlet
Rebecca
The Great Gatsby
Iceland
Program:
function: Find
inputs: black-and-white
function: Relate
dependencies: 0
inputs: color
backward
function: FilterConcept
dependencies: 1
inputs: visual artwork
function: FindAll
function: FilterStr
dependencies: 3
inputs: title
Christoph Columbus
function: FilterConcept
dependencies: 4
inputs: visual artwork
function: And
dependencies: 2
5
function: What
dependencies: 6
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "visual artwork" . ?e <color> ?e_1 . ?e_1 <pred:name> "black-and-white" .  ?e <title> ?pv . ?pv <pred:value> "Christoph Columbus" .  }
Answer: Christopher Columbus