Question: What person's profession is singer-songwriter and Libris-URI is vs69jb1d0v2dc2n?
Choices: Sufjan Stevens
William Henry Harrison
Neil Young
Sylvester Stallone
India.Arie
Max Fleischer
Axl Rose
Usher
Richard Gere
James Hetfield
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <occupation> ?e_1 . ?e_1 <pred:name> "singer-songwriter" .  ?e <Libris-URI> ?pv . ?pv <pred:value> "vs69jb1d0v2dc2n" .  }
Program:
function: Find
inputs: singer-songwriter
function: Relate
dependencies: 0
inputs: occupation
backward
function: FilterConcept
dependencies: 1
inputs: human
function: FindAll
function: FilterStr
dependencies: 3
inputs: Libris-URI
vs69jb1d0v2dc2n
function: FilterConcept
dependencies: 4
inputs: human
function: And
dependencies: 2
5
function: What
dependencies: 6
Answer: James Hetfield