Question: Was the band whose Instagram username is duranduran founded before 1999?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "band" . ?e <Instagram_username> ?pv_1 . ?pv_1 <pred:value> "duranduran" . ?e <inception> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1999 ) .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Instagram username
duranduran
function: FilterConcept
dependencies: 1
inputs: band
function: QueryAttr
dependencies: 2
inputs: inception
function: VerifyYear
dependencies: 3
inputs: 1999
<
Answer: yes