Consequently, the threshold voltages of {TAIL ~ the memory cells} connected to {HEAD ~ the word line WL0} are lowered 
Consequently , the threshold voltages of { TAIL ~ the memory cells } connected to { HEAD ~ the word line WL0 } are lowered
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH