Task: Determine the degree of intensity for emotion E in the tweet, giving it a score between 0 and 1, where 0 signifies the least intensity and 1 signifies the greatest intensity.
Tweet: There is no dark side in the moon. In fact, it's all dark.'\nGerry O'Driscoll at the end of 'The Dark side of the Moon'
Emotion: sadness
Intensity score: 
0.229