SPECIAL PART
CHAPTER I- CRIMES AGAINST HUMANITY
Article 74- Crimes against humanity
Murders, massacres, slavery, internal exile and deportation, as well as every act of torture or other inhuman violence committed according to a concrete pre-meditated plan against a group of civil population, for political, ideological, racial, ethnic, and religious reasons, is punished by not less than fifteen years of imprisonment or with life imprisonment.
Extermination - crimes against humanity
Uncertain as to whether "massacres" and "extermination" are necessarily the same thing
EDIT.