Question: In which public university was William Chang educated at?
Choices: McMaster University
Northern Arizona University
The University of Hong Kong
San Diego State University
California Polytechnic State University
Royal Central School of Speech & Drama
University of Memphis
University of Westminster
University of Michigan
University of Waterloo
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "public university" . ?e_1 <educated_at> ?e . ?e_1 <pred:name> "William Chang" .   }
Program:
function: Find
inputs: William Chang
function: Relate
dependencies: 0
inputs: educated at
forward
function: FilterConcept
dependencies: 1
inputs: public university
function: What
dependencies: 2
Answer: The University of Hong Kong