Sentence:  Says Wallace F. Jannsen , <WSD>director</WSD> of the FDA 's Division of Public Information : `` Quacks are apt to direct their appeal directly to older people , or to sufferers from chronic ailments such as arthritis , rheumatism , diabetes , and cancer . 
Meaning of the word marked with <WSD> tags:  someone who supervises the actors and directs the action in the production of a show