Is there a way to extract the specific content related to a tagged PDF element?

There are many developer SDKs that can extract the tag tree of a tagged PDF (a PDF with accessibility markup), and there are many that can extract the PDF content as one big text string.

However I need to find the specific content which each tag points to in the PDF. I know Acrobat has this data because you can clearly see it in the tag tree in Acrobat (picture attached), but is this programmatically possible through an API?

thank you