Question: What is the number of metropolitan areas that have an area of less than 4200 square miles?
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Answer: 0
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "metropolitan area" . ?e <area> ?pv . ?pv <pred:unit> "square mile" . ?pv <pred:value> ?v . FILTER ( ?v < "4200"^^xsd:double ) .  }
Program:
function: FindAll
function: FilterNum
dependencies: 0
inputs: area
4200 square mile
<
function: FilterConcept
dependencies: 1
inputs: metropolitan area
function: Count
dependencies: 2