For the tweet "So @Ryanair site crashes everytime I try to book - how do they help? Tell me there's nothing wrong &amp; hang up #furious #helpless @SimonCalder", classify the intensity of the emotion sadness. The possible classifications are: 0: no sadness can be inferred, 1: low amount of sadness can be inferred, 2: moderate amount of sadness can be inferred, 3: high amount of sadness can be inferred.