Question: Is the official website of the United States city that began in 1771 http://www.niagarafalls.ca/?
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 <inception> ?pv_1 . ?pv_1 <pred:year> 1771 . ?e <official_website> ?pv . ?pv <pred:value> "http://www.niagarafalls.ca/" .  }
Program:
function: FindAll
function: FilterYear
dependencies: 0
inputs: inception
1771
=
function: FilterConcept
dependencies: 1
inputs: city of the United States
function: QueryAttr
dependencies: 2
inputs: official website
function: VerifyStr
dependencies: 3
inputs: http://www.niagarafalls.ca/
Answer: no