Task: Assess the emotional content of the tweet and classify 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 best represent the tweeter's mental state.
Tweet: for an lgbt person to tell someone else that how they identify isn't valid is so sad and against everything we should stand for
This tweet contains emotions: 
pessimism, sadness