It would be neat to be able to have a way to store "Table of Contents". Even more neat if it was possible to both provide the given ToC and also add additional entries that are not explicitly listed – e.g., Hatets sånger has 5 entries in its ToC, but many, many, many poems that are included in chapters 2, 3, and 4 which would be good to list as well. (Bonus points for using a format that allows for linking ToC entries to Works.)

Additionally, I believe that this should not be tied to BB-289/BB-470 as there are instances where a ToC entry does not have a separate work (probably more common than not!) and instances where multiple works can be included in a single ToC entry, such as Hatets sånger – but also e.g. [Surveillance Statehttps://bookbrainz.org/work/4a593f32-1d68-477d-a1ff-94dd1ef9da6a] that includes some Uyghur poems so could still make use of an "order" attribute in relationship to those.