Commenting annotation position

[gjcope]

Hopefully this is just a clarification, and not an issue. In the current draft 4.0 spec, under A comment about 3D sculpture, it says:

In these cases, the position property may be used to define the position where a TextualBody should be rendered.

Does this imply that it's a requirement that a commenting annotation will have a TextualBody or is it more generally applicable to Body? We have many use cases where 3D models are annotated with audio instead.

Any clarity from @JulieWinchester or other editors? Thanks in advance!

[gjcope]

An additional example could be a commenting annotation with a "Choice" body to support multilingual comments.