Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
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