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