instruction:
Given an trivia question precisely answer the question with a word/phrase/name. External resources such as Wikipedia could be used to obtain the facts.
question:
In Greek mythology who was the mother of Zeus, Poseidon and Hades?
answer:
rhea

question:
New Zealander Michael Campbell is a leading player in which sport?
answer:
golf

question:
What one word connects the following 1. In a certain comics universe, the dimension in which criminals are held in a state of suspended animation. 2. Lee Falk's popular creation with the nickname The Ghost Who Walks. 3. Erik, who haunts the Paris Opera House.?
answer:
phantom