Question: What is the area for the United States city whose official website is http://www.hagerstownmd.org/?
Choices: 2343 square kilometre
26390 square kilometre
70725.75 hectare
1704 square kilometre
10.048074 square kilometre
63.395723 square kilometre
31.529731 square kilometre
285.2682 square kilometre
684 square kilometre
354.114621 square kilometre
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "city of the United States" . ?e <official_website> ?pv_1 . ?pv_1 <pred:value> "http://www.hagerstownmd.org/" . ?e <area> ?pv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: official website
http://www.hagerstownmd.org/
function: FilterConcept
dependencies: 1
inputs: city of the United States
function: QueryAttr
dependencies: 2
inputs: area
Answer: 31.529731 square kilometre