 component is present in {HEAD ~ an amount} of from {TAIL ~ about 99 to about 1 percent} by weight based on the combined quantities of components and  
of from
component is present in { HEAD ~ an amount } of from { TAIL ~ about 99 to about 1 percent } by weight based on the combined quantities of components and
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH