I was counting '-', '?', '-?', and '??'. which would be four I guess. But they tossed me off kilter on Saturday trying to figure out what they mean (and I h

I was counting '-', '?', '-?', and '??'. which would be four I guess. But they tossed me off kilter on Saturday trying to figure out what they mean (and I haven't gotten back to looking at it again yet, though will eventually).