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: Don't be disheartened if you didn't get the cards you wanted, it's not the end of the world......E-Eh...? Y-You want me to cheer you up?
Emotion: sadness
Intensity score: 
0.438