Complex sentence: For example, a typical reader of English needs no explanation of The Wizard of Oz, but has no idea who Zwarte Piet might be; for a typical reader of Dutch, it might be the other way around.
Split into simpler sentences: For example, a typical reader of English needs no explanation of The Wizard of Oz, but has no idea who Zwarte Piet might be. By contrast, for a typical reader of Dutch, it might be the other way around.