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: Angry shouting match between a #pessimist &amp; an #optimist:\n'You're a half empty-headed @%$!' \n'You're half full of @%$!'
Emotion: sadness
Intensity score: 
0.542