The problem I'm pointing out here is that it fails to actually explore that ambiguity. The majority cleanly decide that the 3 automobiles are out and everything else is in. There is interesting ambiguity, but it gets thrown out by the context; the context dictates things that are unambiguously vehicles, like boats and bicycles, are actually not violating the rule, because the rule in context actually means automobiles. You cannot explore the ambiguity around the meaning of "vehicle" with a context that dictates you actually meant automobile. At most you can make a point about type theory and type inference, but that was not the point the game was trying to make.