Here, lands 4 are divided into {TAIL ~ one third and two thirds sections} from {HEAD ~ alternating ends} on adjacent lands 4 
Here , lands 4 are divided into { TAIL ~ one third and two thirds sections } from { HEAD ~ alternating ends } on adjacent lands 4
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH