The external spline is capable of axial movement with {HEAD ~ respect} to {TAIL ~ the internal spline} 
to
The external spline is capable of axial movement with { HEAD ~ respect } to { TAIL ~ the internal spline }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL