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: HOLIDAYS & OBSERVANCES 
Clue: In Italy some families eat a traditional supper of fried eels on this December Eve

Output: christmas eve


Input: Consider Input: Category: "E" BAY 
Clue: Thinking green, biologist Ernst Haeckel coined this term for the way animals interact with the environment

Output: ecology


Input: Consider Input: Category: ROCKY 
Clue: The greatest difference in hardness between 2 Mohs scale neighbors is between corundum (9) & this (10)


Output: diamond