{HEAD ~ The drawer} is movable to {TAIL ~ the front} of the desk while gliding on horizontal guides on the side walls and on a wheel attached to the front and moving along the floor 
is movable to
{ HEAD ~ The drawer } is movable to { TAIL ~ the front } of the desk while gliding on horizontal guides on the side walls and on a wheel attached to the front and moving along the floor
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH