And asks for "Any two people can sit on this couch" (I assume "at the same time") without using something like _xe'e_. But this is an easy context-leaper case, the home ground of that concept: "for any x and y different from one another and both people, it can be the case that both sit on this counch at the same time." The universal just has to get outside the scope of the "can," which is hard to show in English.