The particular grades of {TAIL ~ PET} and {HEAD ~ LCP} within these tests were grouped for comparison as examples 1 5, 6 9, 10 12, and 13 16 
The particular grades of { TAIL ~ PET } and { HEAD ~ LCP } within these tests were grouped for comparison as examples 1 5 , 6 9 , 10 12 , and 13 16
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH