Question: Who served as Vice-President under the person who said, "Obedience of the law is demanded; not asked as a favor"?
Answer(s):
answer: Charles W. Fairbanks

SPARQL query:
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SELECT DISTINCT ?x
WHERE {
FILTER (?x != ?c)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
?c ns:people.person.quotations ns:m.048j420 . 
?c ns:government.us_president.vice_president ?x .
}