Such symmetrical elements are found in building {TAIL ~ blocks} that may be used in {HEAD ~ the present disclosure} 
Such symmetrical elements are found in building { TAIL ~ blocks } that may be used in { HEAD ~ the present disclosure }
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD