Question: Which school does Columbia University affiliate with?
Choices:
National Theatre School of Canada
Columbia Business School
The Citadel, The Military College of South Carolina
The Wharton School
Harvard Business School
London Business School
MIT Sloan School of Management
Barnard College
Stanford Graduate School of Business
Union Theological Seminary
Answer: Columbia Business School
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "school" . ?e <affiliation> ?e_1 . ?e_1 <pred:name> "Columbia University" .   }
Program:
function: Find
inputs: Columbia University
function: Relate
dependencies: 0
inputs: affiliation
backward
function: FilterConcept
dependencies: 1
inputs: school
function: What
dependencies: 2