Question: What is the Hornbostel-Sachs classification of the class of instruments whose official website is http://www.marimba.org/en?
Choices: 211.11
242
112.1
321.321-6
321.321
423.121.11
531.1
111.212
314.122-5
412.132
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "class of instruments" . ?e <official_website> ?pv_1 . ?pv_1 <pred:value> "http://www.marimba.org/en" . ?e <Hornbostel-Sachs_classification> ?pv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: official website
http://www.marimba.org/en
function: FilterConcept
dependencies: 1
inputs: class of instruments
function: QueryAttr
dependencies: 2
inputs: Hornbostel-Sachs classification
Answer: 111.212