A desk includes a compartment for {HEAD ~ a silent printer} designed to prevent dirt and {TAIL ~ dust} from entering it 
A desk includes a compartment for { HEAD ~ a silent printer } designed to prevent dirt and { TAIL ~ dust } from entering it
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH