Question: What is meant by a songwriter which is the occupation of Luther Vandross?
Choices: small forward
environmentalist
composer
Gulzar
playwright
poet
singer-songwriter
all-rounder
record producer
columnist
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "songwriter" . ?e_1 <occupation> ?e . ?e_1 <pred:name> "Luther Vandross" .   }
Program:
function: Find
inputs: Luther Vandross
function: Relate
dependencies: 0
inputs: occupation
forward
function: FilterConcept
dependencies: 1
inputs: songwriter
function: What
dependencies: 2
Answer: singer-songwriter