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.

Example Input: Category: NATURE STUDY 
Clue: This tall shrub is prized for the reddish dye obtained from its leaves that's used to color hair
Example Output: henna

Example Input: Category: -OLOGIES 
Clue: Seismology studies the seismic waves produced by these plate shifts
Example Output: earthquakes

Example Input: Category: OPERA 
Clue: She's a slave to Amneris, an Egyptian princess
Example Output:
aida