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: @BlurtAlerts 'the darkest of nights can be bright, the solemn of faces lights up with a smile'. -@Totemprince believe in me, as I do in you
Emotion: sadness
Intensity score: 
0.229