Question: Which Oregon county has the capital of Salem (the one whose area is 127.220892 square kilometre)?
Choices: Oregon
Columbia County
Clackamas County
Linn County
Tillamook County
Yamhill County
Marion County
Lake County
Douglas County
Jackson County
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "county of Oregon" . ?e <capital> ?e_1 . ?e_1 <pred:name> "Salem" . ?e_1 <area> ?pv . ?pv <pred:unit> "square kilometre" . ?pv <pred:value> "127.220892"^^xsd:double .   }
Program:
function: Find
inputs: Salem
function: FilterNum
dependencies: 0
inputs: area
127.220892 square kilometre
=
function: Relate
dependencies: 1
inputs: capital
backward
function: FilterConcept
dependencies: 2
inputs: county of Oregon
function: What
dependencies: 3
Answer: Marion County