{HEAD ~ Suitable diamines} include {TAIL ~ triethylene glycol diamine} and tetraethylene glycol diamine , among others 
include
{ HEAD ~ Suitable diamines } include { TAIL ~ triethylene glycol diamine } and tetraethylene glycol diamine , among others
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH