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: Been working in Blanchardstown shopping centre for over 2 years now and I only figured out today where Marks &amp; Spencer's is #lost
This tweet contains emotions: 
disgust, pessimism, sadness