instruction:
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.
question:
Category: STARRY NIGHT 
Clue: The helix nebula is in this constellation, whose "arm" holds 5 stars suggesting a water pitcher
answer:
aquarius


question:
Category: "EAST" 
Clue: This holiday may take its name from the name of the Anglo-Saxon goddess of spring
answer:
easter


question:
Category: SCIENCE STUFF 
Clue: This type of rock that develops from magma can be divided into 2 groups: extrusive & intrusive
answer:

igneous rock