As an example, {TAIL ~ the user} can ride {HEAD ~ a stationary exercise bicycle} for a duration of time, such as 15 minutes 
As an example , { TAIL ~ the user } can ride { HEAD ~ a stationary exercise bicycle } for a duration of time , such as 15 minutes
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH