Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Very Contentful Effort

This is the one album of the Greatest Hits collection that proves that Chicago can definitely write some smooth, beautiful ballads. While a few are a little bit close to the "rock" side, you will hear some lovely hits such as "Hard to Say I'm Sorry/Get Away(#1)", "Look Away(#1)", and the famous "You're the Inspiration(top #5, a wonderful song!)". For those who like slow music, I suggest this album to you in a heartbeat. If you want more upbeat titles, look for "The Heart of Chicago" albums that have a mixture of Chicago's talents.