By placing {TAIL ~ a pointer} on {HEAD ~ the target net location}, the X and Y coordinate data 112 is provided 
By placing { TAIL ~ a pointer } on { HEAD ~ the target net location } , the X and Y coordinate data 112 is provided
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH