In {TAIL ~ addition}, power to the device is terminated in response to {HEAD ~ the power management event} 
In { TAIL ~ addition } , power to the device is terminated in response to { HEAD ~ the power management event }
OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD