Task: Analyze the tweet's emotional expression, classifying it as 'neutral or no emotion' or as one or more of the identified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best represent the tweeter's emotional state.
Tweet: @Flewbys This thread is a bunch of Putin lovers rejoicing over a video posted by Iranian state television. Sad!
This tweet contains emotions: 