Task: Determine the degree of intensity for emotion E in the tweet, giving it a score between 0 and 1, where 0 signifies the least intensity and 1 signifies the greatest intensity.
Tweet: @WhiskurMew Happy birthday, beautiful! I hope today is as lovely, wonderful, and astounding as you are!! You deserve no less than that! 😊🎉🎂💞
Emotion: joy
Intensity score: 
0.891