Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Information Forms (hierarchy name)
5. information forms (objects)
6. document genres
7. [documents by form]
8. graphic document genres
9. tables (documents)

Anotations

Scope note:

A standardized chart of the chemical elements laid out in sequence by atomic number, arranged in horizontal rows and vertical columns, called periods and groups, so that elements with similar properties are in the same column.