Question: Which river have the smallest watershed?
Choices: Amazon
Hudson River
Rhine
comedy of manners
Danube
Mississippi River
Ohio River
River Thames
Columbia River
Missouri River
SPARQL: SELECT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "river" . ?e <watershed_area> ?pv . ?pv <pred:value> ?v .  } ORDER BY ?v LIMIT 1
Program:
function: FindAll
function: FilterConcept
dependencies: 0
inputs: river
function: SelectAmong
dependencies: 1
inputs: watershed area
smallest
Answer: River Thames