Question: Which has the most area among the Pennsylvania counties established after 1839?
Choices: Cumberland County
Lehigh County
Sullivan County
Fayette County
Warren County
Allegheny County
Westmoreland County
Lackawanna County
Fulton County
Blair County
SPARQL: SELECT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "county of Pennsylvania" . ?e <inception> ?pv_1 . ?pv_1 <pred:year> ?v_1 . FILTER ( ?v_1 > 1839 ) . ?e <area> ?pv . ?pv <pred:value> ?v .  } ORDER BY DESC(?v) LIMIT 1
Program:
function: FindAll
function: FilterYear
dependencies: 0
inputs: inception
1839
>
function: FilterConcept
dependencies: 1
inputs: county of Pennsylvania
function: SelectAmong
dependencies: 2
inputs: area
largest
Answer: Blair County