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.

Select a plump chicken., Dress., Cut in pieces., Place in saucepan., Cover with boiling water., Add celery, salt and pepper. Cover., Simmer slowly until chicken is tender., Prepare dumpling dough.
chicken, salt, pepper, celery