Is the sentiment of the input negative?

Text Input: OMG Mali Music is going to be in Philly tomorrow! At the Liacouras Center\u002c performing at the Kingsmen tour! I\u2019m so sad.
OMG Mali Music is going to be in Philly tomorrow! At the Liacouras Center\u002c performing at the Kingsmen tour! I\u2019m so sad.