Question: Is 409 the local dialing code for the United States city that is the birthplace of Janis Joplin?
Choices:
yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
Answer: yes
SPARQL: ASK { ?e <pred:instance_of> ?c . ?c <pred:name> "city of the United States" . ?e_1 <place_of_birth> ?e . ?e_1 <pred:name> "Janis Joplin" .  ?e <local_dialing_code> ?pv . ?pv <pred:value> "409" .  }
Program:
function: Find
inputs: Janis Joplin
function: Relate
dependencies: 0
inputs: place of birth
forward
function: FilterConcept
dependencies: 1
inputs: city of the United States
function: QueryAttr
dependencies: 2
inputs: local dialing code
function: VerifyStr
dependencies: 3
inputs: 409