{HEAD ~ The beams} 14 have {TAIL ~ a 1/2 inch square cross section}, but other suitable shapes may be used to separate and suspend the containers 12 
have
{ HEAD ~ The beams } 14 have { TAIL ~ a 1/2 inch square cross section } , but other suitable shapes may be used to separate and suspend the containers 12
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH