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: Think Val might be going this week. I'll have to take the rest of the week off work to mourn. I'm sure they'll understand. #GBBO
This tweet contains emotions: 
sadness