Is the disposition of the input text negative?

Text: "http://t.co/YEcHPkrYfC  By now,this should not be a shock to anyone:Floyd Mayweather still believes that he's the greatest boxer of all time"
"http://t.co/YEcHPkrYfC  By now,this should not be a shock to anyone:Floyd Mayweather still believes that he's the greatest boxer of all time"