Various arrangements of components within the device are possible, and {HEAD ~ elements} such as {TAIL ~ filters} can be accommodated 
such as
Various arrangements of components within the device are possible , and { HEAD ~ elements } such as { TAIL ~ filters } can be accommodated
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH