For the tweet "@WeAreElektron sadly #digitakt seems to be out of stock all over Europe. Do you know  if any European online store that has it?", 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.