The data lines and {HEAD ~ the dummy data lines} are extended in {TAIL ~ a second direction} intersecting the first direction 
extended in
The data lines and { HEAD ~ the dummy data lines } are extended in { TAIL ~ a second direction } intersecting the first direction
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH