Question: How many saxophones have Hornbostel-Sachs classification 422.212-71 or that are an instrument used by author Hannah Arendt?
Choices:
3
4
5
6
7
8
9
10
11
12
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Hornbostel-Sachs classification
422.212-71
function: FilterConcept
dependencies: 1
inputs: saxophone
function: Find
inputs: author
function: Relate
dependencies: 3
inputs: occupation
backward
function: Find
inputs: Hannah Arendt
function: And
dependencies: 4
5
function: Relate
dependencies: 6
inputs: instrument
forward
function: FilterConcept
dependencies: 7
inputs: saxophone
function: Or
dependencies: 2
8
function: Count
dependencies: 9
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "saxophone" .  { ?e <Hornbostel-Sachs_classification> ?pv . ?pv <pred:value> "422.212-71" .  } UNION { ?e_1 <instrument> ?e . ?e_1 <pred:name> "Hannah Arendt" . ?e_1 <occupation> ?e_2 . ?e_2 <pred:name> "author" .  } }
Answer: 4