<qa>  What is the primary cause of fecal incontinence?- Chronic watery diarrhea, unmanageable by drugs or diet, as primary cause of fecal incontinence. Incontinent episodes with a Bristol stool consistency of 6 for 4 days during the baseline diary period will be exclusionary, unless the investigator determines that the diary is not indicative of chronic watery diarrhea. 