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.

1 stick margarine, 1/2 chopped onion, 1 can mushroom soup, 8 oz. melted Velveeta cheese, 1 box frozen broccoli, thawed and drained, 1 c. cooked rice

margarine, onion, mushroom soup, Velveeta cheese, frozen broccoli, rice