Task: Measure the intensity of sentiment or valence in the tweet, assigning it a score between 0 (highly negative) and 1 (highly positive).
Tweet: Ok, it seems there is still hope in BSNL 🙂\nNow, BB speed is ok 🙂\nBut I won't thank and elate much lest it be gone again like before 😐🙂
Intensity score: 
0.538