Question: What is the connection between Why We Fight (the one whose color is black-and-white) to World War II?
Choices: foundational text
afflicts
office held by head of government
main subject
illustrator
destination point
official symbol
has parts of the class
award disciplines or subjects
record label
SPARQL: SELECT DISTINCT ?p WHERE { ?e_1 <pred:name> "Why We Fight" . ?e_1 <color> ?e_3 . ?e_3 <pred:name> "black-and-white" . ?e_2 <pred:name> "World War II" . ?e_1 ?p ?e_2 .  }
Program:
function: Find
inputs: black-and-white
function: Relate
dependencies: 0
inputs: color
backward
function: Find
inputs: Why We Fight
function: And
dependencies: 1
2
function: Find
inputs: World War II
function: QueryRelation
dependencies: 3
4
Answer: main subject