Determine how strongly joy is expressed in the following tweet. Use the scale: 0: no joy can be inferred, 1: low amount of joy can be inferred, 2: moderate amount of joy can be inferred, 3: high amount of joy can be inferred.
Tweet: Whenever I turn on the radio and hear Bob Dylan's Knocking on Heaven's Door being played, I assume he's died. #relieved #notyet #someday