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:
What metallic element is the best conductor of electricity?
answer:
silver

question:
Which composer wrote The Manfred Symphony in 1885?
answer:
pyotr ilyich tchaikovsky