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: @RussiaInsider Really sad &amp; surprising. 1 side #Russia fighting against #IS &amp; on the other supporting #Pak which is epic centre 4 #terrorism
This tweet contains emotions: 
fear, sadness, surprise