{HEAD ~ The editing wheel} is made from transparent material, {TAIL ~ such glass}, acrylic etc 
is made from
{ HEAD ~ The editing wheel } is made from transparent material , { TAIL ~ such glass } , acrylic etc
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH