Question: Which American football position that is the position of Edgar Allan Poe (the one that has the occupation of lawyer)?
Choices: halfback
kickoff returner
placekicker
wide receiver
defensive end
lineman
tight end
long snapper
defensive back
quarterback
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "American football position" . ?e_1 <position_played_on_team_/_speciality> ?e . ?e_1 <pred:name> "Edgar Allan Poe" . ?e_1 <occupation> ?e_2 . ?e_2 <pred:name> "lawyer" .   }
Program:
function: Find
inputs: lawyer
function: Relate
dependencies: 0
inputs: occupation
backward
function: Find
inputs: Edgar Allan Poe
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: position played on team / speciality
forward
function: FilterConcept
dependencies: 4
inputs: American football position
function: What
dependencies: 5
Answer: quarterback