Question: How many bowed string instruments do we know Hornbostel-Sachs classification is 321.322-71 or that are the instrument used by John Hartford?
Choices:
4
5
6
7
8
9
10
11
12
13
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Hornbostel-Sachs classification
321.322-71
function: FilterConcept
dependencies: 1
inputs: bowed string instrument
function: Find
inputs: John Hartford
function: Relate
dependencies: 3
inputs: instrument
forward
function: FilterConcept
dependencies: 4
inputs: bowed string instrument
function: Or
dependencies: 2
5
function: Count
dependencies: 6
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "bowed string instrument" .  { ?e <Hornbostel-Sachs_classification> ?pv . ?pv <pred:value> "321.322-71" .  } UNION { ?e_1 <instrument> ?e . ?e_1 <pred:name> "John Hartford" .  } }
Answer: 4