Question: How many studio albums are published in the USA or belong to the hard rock style?
Choices:
0
1
2
3
4
5
6
7
8
9
Program:
function: Find
inputs: hard rock
function: Relate
dependencies: 0
inputs: genre
backward
function: FilterConcept
dependencies: 1
inputs: studio album
function: Find
inputs: United States of America
function: Relate
dependencies: 3
inputs: place of publication
backward
function: FilterConcept
dependencies: 4
inputs: studio album
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> "studio album" .  { ?e <genre> ?e_1 . ?e_1 <pred:name> "hard rock" .  } UNION { ?e <place_of_publication> ?e_1 . ?e_1 <pred:name> "United States of America" .  } }
Answer: 4