Question: What running back is associated with the sport American football and is the position of William Shakespeare (that is involved in the World War II conflict)?
Choices: long snapper
halfback
placekicker
lineman
tight end
kickoff returner
wide receiver
cornerback
fullback
safety
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "running back" . ?e <sport> ?e_1 . ?e_1 <pred:name> "American football" .  ?e_2 <position_played_on_team_/_speciality> ?e . ?e_2 <pred:name> "William Shakespeare" . ?e_2 <conflict> ?e_3 . ?e_3 <pred:name> "World War II" .  }
Program:
function: Find
inputs: American football
function: Relate
dependencies: 0
inputs: sport
backward
function: FilterConcept
dependencies: 1
inputs: running back
function: Find
inputs: World War II
function: Relate
dependencies: 3
inputs: conflict
backward
function: Find
inputs: William Shakespeare
function: And
dependencies: 4
5
function: Relate
dependencies: 6
inputs: position played on team / speciality
forward
function: FilterConcept
dependencies: 7
inputs: running back
function: And
dependencies: 2
8
function: What
dependencies: 9
Answer: halfback