Task: Estimate the strength of emotion E in the tweet by assigning it a real-valued score between 0 and 1, where 0 signifies the least intensity and 1 signifies the greatest intensity.
Tweet: @Johncrookshanks 'Elizabeth Smith!' She said with a cheery smile 'Pleasure to meet you, sir! Where have you travelled from?'
Emotion: joy
Intensity score: 
0.548