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: Been working in Blanchardstown shopping centre for over 2 years now and I only figured out today where Marks &amp; Spencer's is #lost
This tweet contains emotions: 
disgust, pessimism, sadness