Question: Was the year of issue of the Latin pop single earlier than 2013?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Program:
function: Find
inputs: Latin pop
function: Relate
dependencies: 0
inputs: genre
backward
function: FilterConcept
dependencies: 1
inputs: single
function: QueryAttr
dependencies: 2
inputs: publication date
function: VerifyYear
dependencies: 3
inputs: 2013
<
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "single" . ?e <genre> ?e_1 . ?e_1 <pred:name> "Latin pop" .  ?e <publication_date> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 2013 ) .  }
Answer: yes