What is the definition of "is"?

[rainmaker]

Originally posted by Snaqwells
A doesn't have to be facing B in order for B to be facing A. Does she?

Well, see that's the question.

If they don't have to both be facing, then why is it not legal guarding position when B is running alongside a dribbling A? I always thought this was legal guarding position, but I had a very authoritative vet tell me otherwise. So after several minutes of arguing, I gave up, and brought the discussion here.