wherein forwarding the network traffic comprises forwarding the first portion and the second portion of the network traffic based on the application of the first and {TAIL ~ the second sets} of {HEAD ~ patterns}, respectively 
wherein forwarding the network traffic comprises forwarding the first portion and the second portion of the network traffic based on the application of the first and { TAIL ~ the second sets } of { HEAD ~ patterns } , respectively
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 TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH