{HEAD ~ The members} are bent at {TAIL ~ an angle} that allows the members to overlap with their ends in alignment 
are bent at
{ HEAD ~ The members } are bent at { TAIL ~ an angle } that allows the members to overlap with their ends in alignment
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH