Task: Analyze the tweet's emotional connotations and classify it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best portray the tweeter's mental state.
Tweet: Q&amp;A with N. Christie @westernuHistory: fr. @marybethstart: What would Peter and Dardanella think of us knowing? #poorthings
This tweet contains emotions: 
sadness