Analyze the valence intensity of the tweeter's mood conveyed in the tweet "What terrible thing to see and have no vision-\n\nHelen Keller-\n\n-Begin with the end in mind-\n\nStephen Covey-\n\n #whereareugoing". Offer a real-valued score ranging from 0 to 1, where 1 indicates the most positive and 0 indicates the most negative sentiment.
0.426