Task: Quantify the level of emotion E in the tweet with a value from 0 to 1, where 0 signifies the minimum intensity and 1 signifies the maximum intensity.
Tweet: We join our sister's in #SA as they mourn the death of a bright star #PrudenceMabele. RIP sis, till we meet again. #AfriFem
Emotion: sadness
Intensity score: 