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: [Moment of levity on the B41] Baby: I want ISIS! Give me ISIS!\nMom: Shh!\nBaby: I want ISIS!\nWest Indian woman: She wants what?\nMom: *Ices*.
Emotion: joy
Intensity score: 
0.521