Task: Measure the level of emotion E in the tweet using a real-valued score between 0 and 1, where 0 represents the lowest intensity and 1 represents the highest intensity.
Tweet: Their engine runs on fuel called whining :-)\n\nU jst  hv 2b observant..\nHar din Rona dhona &amp; complain. \nHappy news makes them unhappy :-)
Emotion: sadness
Intensity score: 
0.479