{TAIL ~ The first layer} is applied to {HEAD ~ at least a portion} of the core and contains a first polymer 
{ TAIL ~ The first layer } is applied to { HEAD ~ at least a portion } of the core and contains a first polymer
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH