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