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: SIBLING REVELRY 
Clue: Dingane became King of the Zulus in 1828 after taking part in the murder of this king, his own brother

A: shaka
****
Q: Category: SCULPTURE 
Clue: Giovanni Bernini sculpted "Apollo and" this nymph for Cardinal Borghese in the 1620s

A: daphne
****
Q: Category: INVENTORS 
Clue: John Fleming invented this in 1904 & fought in court with Lee de Forest, who invented the triode in 1906

A:
diode
****