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: Texans and Astros both shut out tonight. Houston, we're back to normal. #texans #Astros #sadness #losers
This tweet contains emotions: 
sadness