Complex sentence: Celly Cel then debuted in 1994 with "Heat 4 Yo Azz"; after releasing "Killa Kali" a year later, he did not resurface with "G-Filez" until 1998.
Split into simpler sentences: Celly Cel then debuted in 1994 with "Heat 4 Yo Azz;" after releasing "Killa Kali" a year later. He did not resurface with "G-Filez" until 1998.