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: @nigeriaLNG @TonyAttah #lestweforget 3 yrs on, 2013 Graduate Trainee recruitment not concluded. #disappointed #weary however  #wewait
This tweet contains emotions: 
disgust, sadness