Evaluate the tweet for the intensity of the emotion joy. The categories are as follows: 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: @Za_buhmaid Happy birthday sweety .. sweet 21 hun hope u have a wonderful day and a wondrful joyful year better than the last one, Luv U ♥
3: high amount of joy can be inferred