Question: Of rivers with a rate of discharge surpassing 90 cubic metres a second, which has the greater area of watershed?
Choices:
Amazon
Mississippi River
Danube
Ohio River
Tom Petty and the Heartbreakers
Hudson River
Rhine
Missouri River
Columbia River
River Thames
Answer: Amazon
SPARQL: SELECT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "river" . ?e <discharge> ?pv_1 . ?pv_1 <pred:unit> "cubic metre per second" . ?pv_1 <pred:value> ?v_1 . FILTER ( ?v_1 > "90"^^xsd:double ) . ?e <watershed_area> ?pv . ?pv <pred:value> ?v .  } ORDER BY DESC(?v) LIMIT 1
Program:
function: FindAll
function: FilterNum
dependencies: 0
inputs: discharge
90 cubic metre per second
>
function: FilterConcept
dependencies: 1
inputs: river
function: SelectAmong
dependencies: 2
inputs: watershed area
largest