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 simplicity, answers should be in all lower cased letters.

Category: 1800 
Clue: This vulcanization inventor was born a bouncing baby boy in 1800
charles goodyear

Category: POETRY 
Clue: Completes Omar Khayyam's threesome, "Jug of wine, a loaf of bread -- and"
"thou"

Category: I HEAR A SYMPHONY 
Clue: Mozart's 38th is called by the name of this city that stood in for Vienna in the filming of "Amadeus"

prague