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: @marksandspencer Where has your 50% grapefruit squash gone,not been able to get for weeks #unhappy
This tweet contains emotions: 
disgust, sadness