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: BLUES with BOB HADDRELL &amp; Guests\nFri 23rd Sep 8:30pm - 11:00pm #blues #free #TunbridgeWells
Emotion: sadness
Intensity score: 
0.250