The computer also includes {HEAD ~ a door} that is movably coupled to {TAIL ~ the housing} via a linkage mechanism 
is movably coupled to
The computer also includes { HEAD ~ a door } that is movably coupled to { TAIL ~ the housing } via a linkage mechanism
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH