Question: Is http://www.vicksburg.org/ the official website of the U.S. city that borders Natchez?
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 <shares_border_with> ?e . ?e_1 <pred:name> "Natchez" .  ?e <official_website> ?pv . ?pv <pred:value> "http://www.vicksburg.org/" .  }
Program:
function: Find
inputs: Natchez
function: Relate
dependencies: 0
inputs: shares border with
forward
function: FilterConcept
dependencies: 1
inputs: city of the United States
function: QueryAttr
dependencies: 2
inputs: official website
function: VerifyStr
dependencies: 3
inputs: http://www.vicksburg.org/
Answer: yes