Question: What state where a politician has held a governmental position since 1981 do the Appalachian mountains run through?
Answer(s):
answer: Alabama

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0lm0n)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0lm0n ns:location.location.partially_containedby ?x .
?x ns:government.political_appointer.appointees ?c .
?c ns:government.government_position_held.from "1981-01-03"^^xsd:dateTime . 
}