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: This is a terrific university-a unique university..Athabasca University has become a part of my head &amp; a part of my heart' Peter MacKinnon
This tweet contains emotions: 
joy, love, optimism, trust