Task: Analyze the tweet's sentiment and assign it to either 'neutral or no emotion' or one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: When you're on a train as its pitch black outside and you have no idea where you are... #travel #whereami #lost #adventure
This tweet contains emotions: 
fear, joy, optimism