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