Once there were 3 sisters, named Rhonda, Rhumba, and Rholexa. They went to lunch by crossing a bridge. They returned home the same way.
So the question is, was this one round trip each day, or three (or six) trips over three (or six) different bridges at three (or six) different times, each day?
Exactly what happened would not be established by any one sister’s report vs another’s. Thus, a conundrum, i.e., a something to think about. For Us.