It should be noted that the terms horizontal and vertical, and any reference to a dimension or coordinate system are provided solely for facilitating {HEAD ~ an understanding} of {TAIL ~ the three dimensional crossbar array} and the fabrication method thereof 
of
It should be noted that the terms horizontal and vertical , and any reference to a dimension or coordinate system are provided solely for facilitating { HEAD ~ an understanding } of { TAIL ~ the three dimensional crossbar array } and the fabrication method thereof
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH