{HEAD ~ The holding members} are separated or isolated from {TAIL ~ the slider}, to assure smooth sliding movement of the slider 
are isolated from
{ HEAD ~ The holding members } are separated or isolated from { TAIL ~ the slider } , to assure smooth sliding movement of the slider
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH