Question: How many rivers have a tributary with a lowest point in the Nebraska town with population 1711263?
Choices: 1
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SPARQL: SELECT (COUNT(DISTINCT ?e) AS ?count) WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "river" . ?e <tributary> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "river" . ?e_2 <lowest_point> ?e_1 . ?e_2 <pred:name> "Nebraska" . ?e_2 <population> ?pv . ?pv <pred:unit> "1" . ?pv <pred:value> "1711263"^^xsd:double .   }
Program:
function: Find
inputs: Nebraska
function: FilterNum
dependencies: 0
inputs: population
1711263
=
function: Relate
dependencies: 1
inputs: lowest point
forward
function: FilterConcept
dependencies: 2
inputs: river
function: Relate
dependencies: 3
inputs: tributary
backward
function: FilterConcept
dependencies: 4
inputs: river
function: Count
dependencies: 5
Answer: 1