I guess you'd just have to figure out some way to represent it, say a squiggly line or something, then remember not to count it's intersection, or you could jus

I guess you'd just have to figure out some way to represent it, say a squiggly line or something, then remember not to count it's intersection, or you could just leave a big blank spot, but too many big blanks might throw off the ease of vertical grouping