In {TAIL ~ some cases}, {HEAD ~ the period} of time may be in the range of 1 second to 5 minutes, such as, for example, 1 second, 2 seconds, 3 seconds, 10 seconds, 20 seconds, 30 seconds, or 1 minute 
In
In { TAIL ~ some cases } , { HEAD ~ the period } of time may be in the range of 1 second to 5 minutes , such as , for example , 1 second , 2 seconds , 3 seconds , 10 seconds , 20 seconds , 30 seconds , or 1 minute
REL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH