Document =: Element, ProcessingInstruction, Comment, DocumentType DocumentFragment =: Element,  ProcessingInstruction, Comment,Text, CDATASection, EntityReference DocumentType =: нет потомков EntityReference =: Element,  ProcessingInstruction, Comment, Text, CDATASection,EntityReference Element =: Element,  ProcessingInstruction, Comment, Text, CDATASection, EntityReference Attr =: Text, EntityReference ProcessingInstruction =: нет потомков Comment =: нет потомков Text =: нет потомков CDATASection =: нет потомков Entity := Element, ProcessingInstruction, Comment, Text, CDATASection, EntityReference