Complex sentence: Unikkatil AKA Rrebeli is one of the first Albanian rap artists, who started rapping in the early 90s, mainly against the Serbian government, who was causing a kind of genocide in the Albanian population that time.
Split into simpler sentences: Unikkatil AKA Rrebeli is one of the first Albanian rap artists. The rapper started rapping in the early 90s, mainly against the Serbian government who were causing a kind of genocide in the Albanian population at that time.