Task: Rate the intensity of emotion E in the tweet on a scale of 0 to 1, with 0 indicating the least intensity and 1 indicating the highest intensity.
Tweet: @xiankiefer @TheLincoln Book 5! It's so sprightly &amp; fun cuz he'd been reinvigorated by the Harry Potter series. I'm not kidding.
Emotion: joy
Intensity score: 
0.660