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 consistency, answers should be in all lower cased letters.

Category: REALLY GRIMM FAIRY TALES 
Clue: To marry a princess, Hans had to pluck a feather from the tail of this beast that was part lion, part eagle
griffin

Category: KEANU, ASHTON OR EINSTEIN 
Clue: Born in Beirut, Lebanon
keanu

Category: BOTANY 
Clue: Cryptogams are not plants with secret meanings, but plants such as ferns that don't bear these

seeds