c1dd7be8_Notes_Search_Modifiers_Filters__Description
[Windows Property] System.Kind [Example(s)] kind:document [Note Source Item] Depending on the Form item is one of “email”, “calendar” or “task”. For attachments it is “document” [Description] 
Allows you to filter on the kind of document
NotesConnectors.com: EZ Notes Search Modifiers/Filters
Description