The method 5, wherein said writing all of {HEAD ~ the cells} in {TAIL ~ said sector comprises}: 
The method 5 , wherein said writing all of { HEAD ~ the cells } in { TAIL ~ said sector comprises } :
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH