Is the sentiment derived from the input text neutral?

Given Text: #News: Today in 1991 (August 24th) - Nirvana play at the...: Today in 1991 (August 24th) - Nirvana... #KeepGrunge
#News: Today in 1991 (August 24th) - Nirvana play at the...: Today in 1991 (August 24th) - Nirvana... #KeepGrunge