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: Grim and despair feeling-I look at self and my family. Hubby fought 20+ years for this country. I've worked 20+ years for this govt--&gt;
Emotion: sadness
Intensity score: 
0.688