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: AT RANDOM 
Clue: A cross between tennis & ping-pong, this sport was named for a dog, not a gherkin
answer:
pickle ball


question:
Category: BEFORE, DURING & AFTER 
Clue: The "holy" first pope is in this '60s folk trio also including this actress who was "America's Sweetheart"
answer:
pope peter paul and mary pickford


question:
Category: GEOLOGY 
Clue: Of the 3 main classes of rock, this one accounts for about 75% of all the exposed rocks on land
answer:

sedimentary