{HEAD ~ The barrier member} can have {TAIL ~ a construction} that is flexible in both directions along the length and width of the barrier member 
have
{ HEAD ~ The barrier member } can have { TAIL ~ a construction } that is flexible in both directions along the length and width of the barrier member
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH