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