Task: Determine the prevailing emotional tone of the tweet, categorizing it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that most accurately represent the tweeter's mental state.
Tweet: When you have just about enough @marmite in your jar at work for 1/4 of a slice of toast 😩😩 #unhappy
This tweet contains emotions: 
pessimism, sadness