Question: How many products need water volume greater than 5400 cubic metres per ton?
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Answer: 2
SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "product" . ?e <water_footprint> ?pv . ?pv <pred:unit> "cubic metre per ton" . ?pv <pred:value> ?v . FILTER ( ?v > "5400"^^xsd:double ) .  }
Program:
function: FindAll
function: FilterNum
dependencies: 0
inputs: water footprint
5400 cubic metre per ton
>
function: FilterConcept
dependencies: 1
inputs: product
function: Count
dependencies: 2