Question: Which higher education institution was Craig Thomas (the one that has the occupation of playwright)  educated at?
Choices: Tsinghua University
University of Manchester
Imperial College London
Pratt Institute
University of Bologna
University of Denver
Middlebury College
Wesleyan University
Cardiff University
City, University of London
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "higher education institution" . ?e_1 <educated_at> ?e . ?e_1 <pred:name> "Craig Thomas" . ?e_1 <occupation> ?e_2 . ?e_2 <pred:name> "playwright" .   }
Program:
function: Find
inputs: playwright
function: Relate
dependencies: 0
inputs: occupation
backward
function: Find
inputs: Craig Thomas
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: educated at
forward
function: FilterConcept
dependencies: 4
inputs: higher education institution
function: What
dependencies: 5
Answer: Cardiff University