The desk 2, wherein {HEAD ~ said at least one shelf} is mounted below {TAIL ~ said bottom member} which supports said printer 
is mounted below
The desk 2 , wherein { HEAD ~ said at least one shelf } is mounted below { TAIL ~ said bottom member } which supports said printer
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH