{HEAD ~ The structural segments} are then assembled to form sub structures which are then assembled to form {TAIL ~ the completed structure} such as a geodesic dome structure 
{ HEAD ~ The structural segments } are then assembled to form sub structures which are then assembled to form { TAIL ~ the completed structure } such as a geodesic dome structure
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH