{HEAD ~ a curing agent} comprising a plurality of groups that are reactive with {TAIL ~ the functional groups} on compound  
{ HEAD ~ a curing agent } comprising a plurality of groups that are reactive with { TAIL ~ the functional groups } on compound
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH