Question: Which US city's official website, in English language, is http://www.ci.lewiston.me.us ?
Choices:
Waukegan
Compton
Columbus
New Haven
Boulder
Oakland
Pontiac
Lewiston
Franklin
Escondido
Answer: Lewiston
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "city of the United States" . ?e <official_website> ?pv . ?pv <pred:value> "http://www.ci.lewiston.me.us/" . [ <pred:fact_h> ?e ; <pred:fact_r> <official_website> ; <pred:fact_t> ?pv ] <language_of_work_or_name> ?qpv . ?qpv <pred:value> "English" .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: official website
http://www.ci.lewiston.me.us/
function: QFilterStr
dependencies: 1
inputs: language of work or name
English
function: FilterConcept
dependencies: 2
inputs: city of the United States
function: What
dependencies: 3