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

With a sharp knife, cut beef across grain in narrow strips 1/8 or 1/2-inch., Combine soy sauce, garlic and ginger., Add beef. Toss and set aside while preparing vegetables (pepper, onion and celery).
beef chuck, soy sauce, garlic, ground ginger, salad oil, Green oil, green, stalks celery, cornstarch, water, tomatoes