The field linearization pattern includes {HEAD ~ a first side} and {TAIL ~ a second side} that intersect at a first corner 
The field linearization pattern includes { HEAD ~ a first side } and { TAIL ~ a second side } that intersect at a first corner
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH