Question: What is the Hosnbostel-Sach classification for a class of instruments that saw its birth in Cuba (the one that has a citizen Al Jourgensen) ?
Choices: 211.11
112.1
422.112-71
121.2
211.212.1
421.221.12
211.221.1
111.222
321.322-71
321.321-6
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "class of instruments" . ?e <country_of_origin> ?e_1 . ?e_1 <pred:name> "Cuba" . ?e_2 <country_of_citizenship> ?e_1 . ?e_2 <pred:name> "Al Jourgensen" .  ?e <Hornbostel-Sachs_classification> ?pv .  }
Program:
function: Find
inputs: Al Jourgensen
function: Relate
dependencies: 0
inputs: country of citizenship
forward
function: Find
inputs: Cuba
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: country of origin
backward
function: FilterConcept
dependencies: 4
inputs: class of instruments
function: QueryAttr
dependencies: 5
inputs: Hornbostel-Sachs classification
Answer: 211.221.1