Task: Determine the degree of intensity for emotion E in the tweet, giving it a score between 0 and 1, where 0 signifies the least intensity and 1 signifies the greatest intensity.
Tweet: @A_RockasThe U.S. has added years to the Syrian conflict by arming the 'rebel' army. You would think that Iraq had sunk in with Kerry.
Emotion: sadness
Intensity score: 
0.417