Task: Analyze the tweet's sentiment and assign it to either 'neutral or no emotion' or one or more of the specified 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