Further, {TAIL ~ embodiments} in the Patent Publication 4 describe {HEAD ~ only general symmetrical splitting structures} 
Further , { TAIL ~ embodiments } in the Patent Publication 4 describe { HEAD ~ only general symmetrical splitting structures }
OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD