Question: What is the official website of the US city whose UN/LOCODE is USURB?
Choices:
http://eyeswideshut.warnerbros.com/
http://www.starwars.com/movies/episode-iii
http://www.adamwest.com
http://allison-janney.com/
http://nasirjones.com
http://www.eaguingamp.com
http://www.cityofsalem.net/
http://www.city.urbana.il.us/
http://www.ias.edu/
http://www.president.go.ke
Answer: http://www.city.urbana.il.us/
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "city of the United States" . ?e <UN/LOCODE> ?pv_1 . ?pv_1 <pred:value> "USURB" . ?e <official_website> ?pv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: UN/LOCODE
USURB
function: FilterConcept
dependencies: 1
inputs: city of the United States
function: QueryAttr
dependencies: 2
inputs: official website