{HEAD ~ The roller} receives the heat emission part and has {TAIL ~ at least one opening} to provide heat to a target  
has
{ HEAD ~ The roller } receives the heat emission part and has { TAIL ~ at least one opening } to provide heat to a target
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH