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: So about 18mths ago i signed up to @Lumo_Energy for their @VirginAustralia / Velocity FF deal. 18 months in still no FF points
Emotion: fear
Intensity score: 
0.271