In one embodiment, {TAIL ~ the determination operation} 412 is performed by {HEAD ~ a determination module} 
In one embodiment , { TAIL ~ the determination operation } 412 is performed by { HEAD ~ a determination module }
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD