Task: Categorize the tweet's emotional tone as either 'neutral or no emotion' or identify the presence of one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Texans and Astros both shut out tonight. Houston, we're back to normal. #texans #Astros #sadness #losers
This tweet contains emotions: 
sadness