Task: Quantify the level of emotion E in the tweet with a value from 0 to 1, where 0 signifies the minimum intensity and 1 signifies the maximum intensity.
Tweet: Happy 12th birthday to my Neopet! #retro\nHappy 75th birthday, Harrison Ford! #legendary\nHappy 80th birthday, Krispy Kreme! #delicious
Emotion: joy
Intensity score: 