Question: Which has the smallest area among the North Carolina counties that are located in the Eastern Time Zone?
Choices: Wake County
Brunswick County
Davidson County
Madison County
Guilford County
Buncombe County
Polk County
Gaston County
Cumberland County
Franklin County
SPARQL: SELECT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "county of North Carolina" . ?e <located_in_time_zone> ?e_1 . ?e_1 <pred:name> "Eastern Time Zone" .  ?e <area> ?pv . ?pv <pred:value> ?v .  } ORDER BY ?v LIMIT 1
Program:
function: Find
inputs: Eastern Time Zone
function: Relate
dependencies: 0
inputs: located in time zone
backward
function: FilterConcept
dependencies: 1
inputs: county of North Carolina
function: SelectAmong
dependencies: 2
inputs: area
smallest
Answer: Davidson County