{HEAD ~ The collapsible position} occupies {TAIL ~ less volumetric weight} as compared to the fully extended position so as to reduce the volumetric weight when the backframe is in transportation and storage 
occupies
{ HEAD ~ The collapsible position } occupies { TAIL ~ less volumetric weight } as compared to the fully extended position so as to reduce the volumetric weight when the backframe is in transportation and storage
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH