In {HEAD ~ some examples}, the light is effective to form the pattern on the graphene layer such that {TAIL ~ the pattern} can be formed on the photoresist layer 
In { HEAD ~ some examples } , the light is effective to form the pattern on the graphene layer such that { TAIL ~ the pattern } can be formed on the photoresist layer
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH