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: @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