Question: Is the beginning date of progressive rock whose famous people are Toto who are well known for rock music after 1181?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Program:
function: Find
inputs: rock music
function: Relate
dependencies: 0
inputs: famous people
forward
function: Find
inputs: Toto
function: And
dependencies: 1
2
function: Relate
dependencies: 3
inputs: famous people
backward
function: FilterConcept
dependencies: 4
inputs: progressive rock
function: QueryAttr
dependencies: 5
inputs: inception
function: VerifyYear
dependencies: 6
inputs: 1181
>
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "progressive rock" . ?e <famous_people> ?e_1 . ?e_1 <pred:name> "Toto" . ?e_2 <famous_people> ?e_1 . ?e_2 <pred:name> "rock music" .  ?e <inception> ?pv . ?pv <pred:year> ?v . FILTER ( ?v > 1181 ) .  }
Answer: yes