Artis' Chicken Gumbo

• 20 stems parsley
• 4 shallots
• 4 bay leaves
• 2 garlic more w (cloves)
• 1 onion
• 1 oysters with liquid
• 1/2 green pepper
• 800 gr stewing chicken
• 260 gr andouille sausage
• 8 gr flour