A pair of {TAIL ~ handholds} is suspended from {HEAD ~ an arcuate guide plate}, which extends above a user station 
A pair of { TAIL ~ handholds } is suspended from { HEAD ~ an arcuate guide plate } , which extends above a user station
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH