{HEAD ~ Its purpose} is to extend {TAIL ~ the life} of body boards when used recreationally in the surf 
is to extend
{ HEAD ~ Its purpose } is to extend { TAIL ~ the life } of body boards when used recreationally in the surf
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH