TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For consistency, answers should be in all lower cased letters.
PROBLEM: Category: THE U.S. CONGRESS 
Clue: Frustrated with his own political party, in 2001 this senator from Vermont switched to indepedent

SOLUTION: jeffords

PROBLEM: Category: A PARIS CHRONOLOGY 
Clue: Paris was founded around 250 B.C. by the Celtic Parisii tribe, who built a settlement on an island in this river

SOLUTION: the seine

PROBLEM: Category: FAMILIAR TV FACES 
Clue: The romantic Taster's Choice-loving neighbor in TV ads, Anthony Stewart Head is now Giles on this show

SOLUTION:
buffy the vampire slayer