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.

Input: Consider Input: Category: ON THE ROCKS 
Clue: This rock formed from hardened lava formed the Hawaiian Islands

Output: basalt


Input: Consider Input: Category: BELCHING 
Clue: Before a volcano belches it forth, it's called magma

Output: lava


Input: Consider Input: Category: WRITERS' PRIVATE LIVES 
Clue: During WWII this Tarzan creator worked as a correspondent for the L.A. Times


Output: edgar rice burroughs