Question: How many studio albums use the English language and were published before 1991?
Choices:
0
1
2
3
4
5
6
7
8
9
Program:
function: Find
inputs: English
function: Relate
dependencies: 0
inputs: language of work or name
backward
function: FilterConcept
dependencies: 1
inputs: studio album
function: FindAll
function: FilterYear
dependencies: 3
inputs: publication date
1991
<
function: FilterConcept
dependencies: 4
inputs: studio album
function: And
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 <language_of_work_or_name> ?e_1 . ?e_1 <pred:name> "English" .  ?e <publication_date> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1991 ) .  }
Answer: 5