Determine the emotional tone of the following tweet: "It'd probably be useful to more than women, but I'm dealing with re-reading an article about a woman being harassed on the subway. #concern". Use the provided emotions: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. Respond with the emotions you identify or "neutral or no emotion".
anger, disgust, fear, pessimism, surprise