From the tweet "@DSWT I despair at this madness! It's beyond #shocking it's cold blooded murder!  How long will #SouthAfrica stand by &amp;watch #WorldRhinoDay", identify which emotions are conveyed. Choose from anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, and trust. If no emotions are evident, respond with "neutral or no emotion".
anger, disgust, sadness, surprise