Task: Estimate the strength of emotion E in the tweet by assigning it a real-valued score between 0 and 1, where 0 signifies the least intensity and 1 signifies the greatest intensity.
Tweet: @MarGraham I am practically obsessed with it, the very thought of their departure makes me feel both melancholic and grateful.  Safe journey
Emotion: sadness
Intensity score: 
0.375