Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It's all scientific...

I first heard of this group in 1999 on the Hip-Hop 101 mix tape. Although they were descent on that album, they certainly weren't anything to jump up and down about. Two years later, they release The Self Science and move up another rung on the hip-hop ladder. DJ Khalil has done numerous projects for the underground and I must say that he's a genius with the production on this album. Undeniably, this album exposes the talents of DJ Khalil and MC Chace Infinite to the fullest. Give credit where credit is due, this album is diffently deserving of a double take. The whole album is something you can chill to and reflect upon the science. This is hip-hop's BEST PART, ONLY SOME GET IT!