{HEAD ~ The horizontal lands} and horizontal ribs can extend continuously in {TAIL ~ a vertical direction} from the shoulder region to the base portion 
extend continuously in
{ HEAD ~ The horizontal lands } and horizontal ribs can extend continuously in { TAIL ~ a vertical direction } from the shoulder region to the base portion
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH