Question: What is the Libris-URI of the producer of The Merry Widow (the one that has Irene Lentz as a cast member)?
Choices:
qn245ws80vz3rx7
gdsvpcf00jwsqwl
khwzzq730smmqsd
khwz0qm342151tk
zw9cfrbh30jfw38
75kmnc6r2ln5nw3
sq466v7b22d65cr
hftw08w145bc9t6
0xbflwbj05gbjvd
97mpsg2t0gfwh9t
Answer: 0xbflwbj05gbjvd
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <producer> ?e . ?e_1 <pred:name> "The Merry Widow" . ?e_1 <cast_member> ?e_2 . ?e_2 <pred:name> "Irene Lentz" .  ?e <Libris-URI> ?pv .  }
Program:
function: Find
inputs: Irene Lentz
function: Relate
dependencies: 0
inputs: cast member
backward
function: Find
inputs: The Merry Widow
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: producer
forward
function: FilterConcept
dependencies: 4
inputs: human
function: QueryAttr
dependencies: 5
inputs: Libris-URI