Given the emotion sadness and 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?", rate the intensity of sadness shown. The rating scale is: 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.