Is the sentiment in the input text negative?

Text: "http://t.co/EX9q5wX - #ElastixWorld first Sponsors - Mexico City  November 3rd and 4th, see you all there #fb"
"http://t.co/EX9q5wX - #ElastixWorld first Sponsors - Mexico City  November 3rd and 4th, see you all there #fb"