Task: Determine the sentiment intensity or valence score of the tweet, representing the tweeter's mental state on a continuum from 0 (highly negative) to 1 (highly positive).
Tweet: Completely blown away by @EvaNoblezada @alistairbrammer @JonJonBriones and the cast of @MissSaigonUK tonight. #fathomevents #speechless
Intensity score: 
0.677