Is the mood of the input text negative?

Text: Anderson upsets #3 seed Murray 7-6 6-3 6-7 7-6. Reaches 1st ever major QF. South African played well going for it. Longest match at #USOpen
Anderson upsets #3 seed Murray 7-6 6-3 6-7 7-6. Reaches 1st ever major QF. South African played well going for it. Longest match at #USOpen