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: Probably the best OT period I've ever seen. Absolutely exhilarating. #WCH2016 #TeamNA
This tweet contains emotions: 
joy, optimism