Is the sentiment reflected in the input text neutral?

Input: Aww! Matt Cain just given a key to the city &amp; a proclamation of June 13th as Matt Cain Day in SF for his perfect game. Yay Matty! #MattCain
Aww! Matt Cain just given a key to the city &amp; a proclamation of June 13th as Matt Cain Day in SF for his perfect game. Yay Matty! #MattCain