Therefore, {TAIL ~ VUV} is the most desirable form of {HEAD ~ energy} for photon assisted transport polymerization 
Therefore , { TAIL ~ VUV } is the most desirable form of { HEAD ~ energy } for photon assisted transport polymerization
OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH