Question: How many heavy metal bands were established before 1988 and after 1990?
Choices:
8
9
10
11
12
13
14
15
16
17
Program:
function: FindAll
function: FilterYear
dependencies: 0
inputs: inception
1990
!=
function: FilterConcept
dependencies: 1
inputs: heavy metal
function: FindAll
function: FilterYear
dependencies: 3
inputs: inception
1988
<
function: FilterConcept
dependencies: 4
inputs: heavy metal
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> "heavy metal" . ?e <inception> ?pv . ?pv <pred:year> ?v . FILTER ( ?v != 1990 ) . ?e <inception> ?pv_1 . ?pv_1 <pred:year> ?v_1 . FILTER ( ?v_1 < 1988 ) .  }
Answer: 8