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.

Ex Input:
Category: THEIR FIRST FEATURE FILMS 
Clue: June Lockhart debuted as a Cratchit child in this 1938 film, with her real parents playing Mr. & Mrs. Bob Cratchit

Ex Output:
a christmas carol


Ex Input:
Category: RULERS 
Clue: In 770 this king of the Franks married Desiderata, daughter of the Lombard king Desiderius

Ex Output:
charlemagne


Ex Input:
Category: SCIENTISTS & INVENTORS 
Clue: In 132 Zhang Heng developed a crude one of these instruments that registers earthquakes

Ex Output:

seismograph