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.

[Q]: Category: THEATRICAL TERMS 
Clue: Partly from Greek for "song", they began as plays with music, then acquired sensational plots
[A]: melodramas


[Q]: Category: INVENTORS 
Clue: Mainz, Germany celebrates the life of this inventor in an annual festival called Johannisnacht
[A]: johannes gutenberg


[Q]: Category: VOCABULARY 
Clue: Pronounced one way, this 7-letter word can mean unjustified; pronounced another, it's someone sickly
[A]:
invalid