{HEAD ~ Any} of {TAIL ~ the carbon layer} adhering to the silicon layer is easily removable to provide the silicon layer separate from the substrate 
{ HEAD ~ Any } of { TAIL ~ the carbon layer } adhering to the silicon layer is easily removable to provide the silicon layer separate from the substrate
HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH