Complex sentence: Cheese and wine are a major part of the cuisine, playing different roles regionally and nationally, with many variations and "appellation d'origine contrôlée" (AOC) (regulated appellation) laws.
Split into simpler sentences: Cheese and wine are a major part of the cuisine. They play different roles regionally and nationally, with many variations and "appellation d'origine contrôlée" (AOC) (regulated appellation) laws.