Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: Going off reports on Sky, Stoke played ok tonight. Think i'll stay off the messageboard tonight though -it will be grim on there :/
This tweet contains emotions: 
pessimism, sadness