Question: Is the airline callsign for a business, whose Twitter username is americanair, KLM ?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "business" . ?e <Twitter_username> ?pv_1 . ?pv_1 <pred:value> "americanair" . ?e <callsign_of_airline> ?pv . ?pv <pred:value> "KLM" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: Twitter username
americanair
function: FilterConcept
dependencies: 1
inputs: business
function: QueryAttr
dependencies: 2
inputs: callsign of airline
function: VerifyStr
dependencies: 3
inputs: KLM
Answer: no