Question: Was Signs, recorded on the Geffen Records label, released post-1990 ?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:name> "Signs" . ?e <record_label> ?e_1 . ?e_1 <pred:name> "Geffen Records" .  ?e <publication_date> ?pv . ?pv <pred:year> ?v . FILTER ( ?v > 1990 ) .  }
Program:
function: Find
inputs: Geffen Records
function: Relate
dependencies: 0
inputs: record label
backward
function: Find
inputs: Signs
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: publication date
function: VerifyYear
dependencies: 4
inputs: 1990
>
Answer: yes