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: At a groovy restaurant. Got a cheeseburger and fries. I don't discriminate. Rating; 5/7 #yummy #delicious #politicallycorrect
Emotion: joy
Intensity score: 
0.636