Are the feelings in the input text negative?

Given Text: "Just found out my bro @user is going to be on ESPN2 Sat night for the Neb game!! Sad I can't see it, so you should watch it:) #bigdebute"
"Just found out my bro @user is going to be on ESPN2 Sat night for the Neb game!! Sad I can't see it, so you should watch it:) #bigdebute"