Question: What is the duration of Battle of Britain (the one that has Ralph Richardson as a cast member) ?
Choices:
68 minute
7 minute
2132 second
126 minute
168 minute
122.0 minute
178 minute
208 minute
9 minute
29 minute
Program:
function: Find
inputs: Ralph Richardson
function: Relate
dependencies: 0
inputs: cast member
backward
function: Find
inputs: Battle of Britain
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: duration
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Battle of Britain" . ?e <cast_member> ?e_1 . ?e_1 <pred:name> "Ralph Richardson" .  ?e <duration> ?pv .  }
Answer: 126 minute