Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: It's finally raining in Ashland, Oregon. We've been parched all summer &amp; fall. The plants &amp; people are rejoicing!
This tweet contains emotions: 
joy