Sample values include inline , interlinear , left , right , foot , and end , for notes which appear as marked paragraphs in the body of the text, between the lines, in the left or right margin, at the foot of the page, or at the end of the chapter or volume, respectively. Where possible, the body of a note should be inserted in the text at the point at which its identifier or mark first appears. This may not be possible for example with marginalia, which may not be anchored to an exact location. For simplicity, it may be adequate to position marginal notes before the relevant paragraph or other element. The n attribute may be used to supply the number or identifier of a note if this is required.
Collections are ensembles of distinct entities or objects of any sort.