system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
What is the difference between their, there, and they're?


assistant
Their, there, and they're are homophones.  Homophones are words that sound similar but have different meanings and spellings.  Their is a possessive pronoun, as in "their bicycle is green".  They're is a contraction of "they are", as in "they're going to the game tomorrow".  There is an adjective, as in "she is always there for her friends".  There can also be used as a noun, as in "stay out of there", or as an adverb, as in "stop over there".