More specifically, {HEAD ~ the present invention} relates to irregular shaped substrates and {TAIL ~ a method} for producing such substrates 
More specifically , { HEAD ~ the present invention } relates to irregular shaped substrates and { TAIL ~ a method } for producing such substrates
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH