Question: Is the establishment date of the United States city whose official website is http://www.covingtonky.gov (this statement's language is English) prior to the year 1844?
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 <official_website> ?pv_1 . ?pv_1 <pred:value> "http://www.covingtonky.gov" . [ <pred:fact_h> ?e ; <pred:fact_r> <official_website> ; <pred:fact_t> ?pv_1 ] <language_of_work_or_name> ?qpv . ?qpv <pred:value> "English" . ?e <inception> ?pv . ?pv <pred:year> ?v . FILTER ( ?v < 1844 ) .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: official website
http://www.covingtonky.gov
function: QFilterStr
dependencies: 1
inputs: language of work or name
English
function: FilterConcept
dependencies: 2
inputs: city of the United States
function: QueryAttr
dependencies: 3
inputs: inception
function: VerifyYear
dependencies: 4
inputs: 1844
<
Answer: yes