An item of explanatory text, such as a footnote or an end note, that is referred to from within the body of the document. It may have a label (structure type ) as a child. The note may be included as a child of the structure element in the body text that refers to it, or it may be included elsewhere (such as in an end notes section) and accessed by means of a reference (structure type ).
Tagged PDF does not prescribe the placement of footnotes in the page content order. They may be either inline or at the end of the page, at the discretion of the conforming writer.
Supported in PDF/UA-1.

public java.lang.String NOTE