from about 1% to about 20% by {HEAD ~ weight} of {TAIL ~ an abrasive composition} comprising 
from about 1 % to about 20 % by { HEAD ~ weight } of { TAIL ~ an abrasive composition } comprising
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH