The system includes {HEAD ~ a first member} such as {TAIL ~ a header} for attachment to the boat 
such as
The system includes { HEAD ~ a first member } such as { TAIL ~ a header } for attachment to the boat
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH