TASK DEFINITION: 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.
PROBLEM: Category: DRAMA 
Clue: Sula & Helena are robotesses in this Karel Capek play

SOLUTION: "r.u.r."

PROBLEM: Category: FUTURISTIC FILMS 
Clue: 1 of 2 races Rod Taylor meets circa 800,000 A.D. in "The Time Machine"

SOLUTION: elois

PROBLEM: Category: CAN I HAVE A MOMENT? 
Clue: Oprah calls instants of realization these moments; actress Ginnifer Goodwin had one that made her become a vegan

SOLUTION:
an a-ha moment