Task: Evaluate the strength of emotion E in the tweet, providing a real-valued score from 0 to 1. A score of 0 denotes the absence of the emotion, while a score of 1 indicates the highest degree of intensity.
Tweet: Because of 'failure of delivery on time', a customer has to pay 16K rupees more! - Not good @tiagotatamotors @TataMotors #unhappy
Emotion: sadness
Intensity score: 
0.625