# Suggested Element Modifiers

Element modifiers for the suggested element are listed in the table below. The element modifier must be enclosed in square brackets [ ] and placed after the element. The element modifier layers has several synonyms, layer, attrs and attr.

KEY | VALUE TYPE | DESCRIPTION
base | NONE | The suggested node is the bottom-most node to search when looking down a singlet chain for a match. See also the singlet modifier.
unsealed | NONE | The suggested node will be searched for select nodes (i.e., nodes specified after @NODES marker).
layers layer attrs attr | LIST | After normal reduce, perform additional reduces, naming the nodes as in the list. This enables layering of attributes in the parse tree.

## See Also

Phrase Element Modifiers

Rule Syntax