Spicy Corn and Crawfish Chowder

Name: Spicy Corn and Crawfish Chowder
Ingredients: 4 Tablespoon Butter; 4 Tablespoon All-Purpose Flour; 1 1/3 Cup Bell Pepper; 1 1/3 Cup Onion; 1 Cup Celery; 3/4 Cup Tomato; 1 1/3 Cup Corn, Whole Kernel; 2 Tablespoon garlic (Chopped); 4 Cups Shrimp Stock; 2 Small Sweet Potato (Peeled and Diced); 1 Pound Crawfish Tails (Thawed); 15 Ounce Evaporated Milk; 4 Teaspoon Ground Shrimp Powder; 1 Teaspoon Herbes de Provence; 1/2 Teaspoon Cayenne; 1/2 Teaspoon Salt; 4 Turns Pepper Grinder; 1/2 Cup Sausage (Cooked and diced)