premise: On one afternoon, Patterson meets individually with each of exactly five clients—Reilly, Sanchez, Tang, Upton, and Yansky—and also goes to the gym by herself for a workout. Patterson's workout and her five meetings each start at either 1:00, 2:00, 3:00, 4:00, 5:00, or 6:00. The following conditions must apply: Patterson meets with Sanchez at some time before her workout. Patterson meets with Tang at some time after her workout. Patterson meets with Yansky either immediately before or immediately after her workout. Patterson meets with Upton at some time before she meets with Reilly. How many of the clients are there, any one of whom could meet with Patterson at 1:00?
hypothesis: two