A chapter and the page written from the same story can say the same thing twice. In one pair, the chapter’s three middle sections restated the page’s three sections, one for one, in paraphrase. A measure of shared runs of six or more words read 4% for the page, so it could not see the restatement.
What the numbers count
The chapter’s three middle sections held 374 of its 809 words, which is 46% of the chapter’s words. A second count of the same three sections gave 370 of 800 words, 46.25%.
The 4% is a share of the page’s words: the part of the page that sits inside runs of six or more words shared with the chapter.
Where the restatement came from
The rule for writing a chapter beside a page asks for a different split. The chapter carries the lesson “in a sentence or two”, and the page carries it in full.
The key, which the scorers checked drafts against, asked the chapter to state every part of the page’s claim. The writer followed the key. No item in the key scored “the split” between chapter and page, so scoring against it passed the duplication.
What changed
The key was amended and the split became a standing check. A later revision cut the chapter’s share of the claim to two sentences.