Determine the valence intensity of the tweeter's emotional state conveyed in the tweet "Blah blah blah Kyrie, IT, etc. @CJC9BOSS leaving Boston is the real news and I am #devastated! #celtics #fave  #someonegetmeajerseyteeasap". Offer a numerical score between 0 and 1, where 1 represents very positive and 0 represents very negative sentiment.