Task: Calculate the intensity of emotion E in the tweet as a decimal value ranging from 0 to 1, with 0 representing the lowest intensity and 1 representing the highest 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