"Horses in the Book of Mormon would be another. You have relatively few mentions of horses, but there are some, and we don't know exactly how they were used; they don't seem to be all that common. Were they horses as we understood them, [or] does the term describe some other animal? Languages don't always and cultures don't always classify things the way we would expect. We have what we call common-sense ways of doing it. They're not common sense; they're just ours. But again, we don't have a strong case there. We're just problem solving there."