instruction:
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.
question:
Category: IT'S A DOG'S LIFE 
Clue: Familiar to fans as "Marmaduke", this lovable breed was a favorite of Elvis, who had 2 at Graceland
answer:
a great dane


question:
Category: MUSICAL INSTRUMENTS 
Clue: Term for the various strands of gut, nylon, or wire stretched over the head of a sidedrum
answer:
snares


question:
Category: SCIENTIFIC AMERICANS 
Clue: In 1959 Khrushchev wanted this dome designer to come over & teach his engineers a thing or two
answer:

buckminster fuller