Paragraphs that are Normal style (i.e., not any Heading style) in a PB are winding up in the TOC undesireably. Here's an example of the outcome:

This is what that part of the document looked like in Word:

Incidentally, most of the rest of those entries in the TOC shouldn't be there either, because they are not set up as Heading styles either. However it so happens that they are headings semantically, and I do want them in the TOC, but I would have thought I'd have to format them as Heading 1, 2, 3... to get them there. This is an enormous document (over 2000 pages in Word) that I'm converting, so it's a matter of convenience for now that all of those are in the TOC. Is that by design? Does Logos have some heuristic to figure out what looks like a heading even if it isn't formatted with a heading style? If so, and if I don't want something to be in the TOC that would be automatically picked up by some criterion I have yet to figure out, how can I prevent it from being in the TOC?