Complex sentence: In Fukushima Prefecture, it is said to be a weasel, and when one looks up at a nyūdō-bōzu, it would gnaw at people's windpipes and kill them.
Split into simpler sentences: In Fukushima Prefecture, it is said to be a weasel. When one looks up at a nyūdō-bōzu, it would gnaw at people's windpipes and kill them.