I stand corrected on the sin-dps route, and the hnl. But I still maintain you can't do this as proposed becasue you have five segments in Asia and only four are allowed. You still seem to think that the transit (x) is important, but it makes no difference at all outside your continent of origin. You would need to get nrt-jfk ticketed on a single coupon (doesn't matter if the plane stops somewhere so long as it is one coupon) for this to work, and I don't know of any way of doing that.