Chicken and Crab Gumbo Low Fat

Name: Chicken and Crab Gumbo Low Fat
Ingredients: 1 tablespoon vegetable oil or 1 tablespoon canola oil; 2 tablespoons flour; 1⁄4 teaspoon cayenne pepper; 2 onions, chopped; 3 stalks celery, chopped; 1 sweet green pepper, diced; 1 sweet red pepper, diced; 3 garlic cloves, chopped; 3 cups chicken broth; 1 (28 ounce) can diced tomatoes (with the juice); 1⁄4 lb boneless skinless chicken breast, diced; 1⁄2 cup long-grain rice; 1⁄2 teaspoon hot pepper sauce; salt, to taste; black pepper, to taste; 1 cup corn; 1⁄4 lb crabmeat (I just use one can); 3 green onions, sliced