Question: What string is a part of the guitar with the Hornbostel-Sachs classification of 513?
Choices: John Fiedler
George Clinton
string
tin whistle
An Inconvenient Truth
Jena Malone
The Three Musketeers
Pittsburgh metropolitan area
Jessica Biel
Robin Hood
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "string" . ?e_1 <has_part> ?e . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "guitar" . ?e_1 <Hornbostel-Sachs_classification> ?pv . ?pv <pred:value> "513" .   }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Hornbostel-Sachs classification
513
function: FilterConcept
dependencies: 1
inputs: guitar
function: Relate
dependencies: 2
inputs: has part
forward
function: FilterConcept
dependencies: 3
inputs: string
function: What
dependencies: 4
Answer: string