Question: How long is Rich Man, Poor Man composed by Alex North?
Choices:
45 minute
10 hour
2690 second
15 minute
4512 second
43 minute
74 minute
222 minute
145 minute
196 minute
Program:
function: Find
inputs: Alex North
function: Relate
dependencies: 0
inputs: composer
backward
function: Find
inputs: Rich Man, Poor Man
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: duration
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Rich Man, Poor Man" . ?e <composer> ?e_1 . ?e_1 <pred:name> "Alex North" .  ?e <duration> ?pv .  }
Answer: 45 minute