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.

Category: ALL ABOARD AMTRAK 
Clue: The Keystone Route serves NYC, Philly & this capital; Three Mile Island's nearby if you're the nuclear plant gawker type
harrisburg

Category: JOE THE PLUMBER 
Clue: Joe knows how to "assemble" 2 words into this 1-word toilet part by combining comedienne Lucille & a male chicken
a ballcock

Category: IN STYLE 
Clue: The TV special "In Style Celebrity Weddings" included the nuptials of Danielle Spencer to this actor

russell crowe