Typically, but not necessarily, the channel {HEAD ~ CH1} can be utilized by at least one other service SRV3, which also competes of {TAIL ~ the channel resource} of CH1 
Typically , but not necessarily , the channel { HEAD ~ CH1 } can be utilized by at least one other service SRV3 , which also competes of { TAIL ~ the channel resource } of CH1
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH