Question: Is 617 the local area code in the United States for the birth city of Jon Anderson, whose date of death is 2007-10-20?
Choices: yes
no
unknown
unknown
unknown
unknown
unknown
unknown
unknown
unknown
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> "Jon Anderson" . ?e_1 <date_of_death> ?pv_1 . ?pv_1 <pred:date> "2007-10-20"^^xsd:date . ?e <local_dialing_code> ?pv . ?pv <pred:value> "617" .  }
Program:
function: Find
inputs: Jon Anderson
function: FilterDate
dependencies: 0
inputs: date of death
2007-10-20
=
function: Relate
dependencies: 1
inputs: place of birth
forward
function: FilterConcept
dependencies: 2
inputs: city of the United States
function: QueryAttr
dependencies: 3
inputs: local dialing code
function: VerifyStr
dependencies: 4
inputs: 617
Answer: yes