Given the task definition and input, reply with output. In this task, you have to generate the named entities (NER) given its ingredients of the recipe. Named entities are the names of the items without their quantity.

10 small tomatoes, 1 1/2 pounds fresh mushrooms, sliced, 3 tablespoons butter or margarine, 3/4 cup commercial sour cream, 3/4 teaspoon salt, 1/4 teaspoon pepper, 9 slices bacon, cooked and crumbled, Chopped fresh chives
tomatoes, fresh mushrooms, butter, sour cream, salt, pepper, bacon, fresh chives