Task: Rate the valence intensity of the tweeter's mental state expressed in the tweet, assigning it a score on a scale of 0 (most negative) to 1 (most positive).
Tweet: #lesson from @KevinHart4real #book I'll apply:  In #life U always have a choice.  Kev had grimey things happen &amp; he #chose #optimism
Intensity score: 
0.571