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: After soul searching, I'd like to announce that I've chosen @chrissyteigen &amp; @nicolerichie to be my adopted sisters due to their hilarity
Emotion: joy
Intensity score: 
0.600