Each zone may be the width of {HEAD ~ one board} across {TAIL ~ the bowling alley} so that different discrete amounts of oil can be applied to each board 
Each zone may be the width of { HEAD ~ one board } across { TAIL ~ the bowling alley } so that different discrete amounts of oil can be applied to each board
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH