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: Hey @PapaJohnsUK I've been charged £40.24 on my credit card 4 an order which never arrived last Friday, any chance of a refund!!
Emotion: fear
Intensity score: 
0.354