identifier_stmt : IDENTIFIER string? stmtend;
-stmtend : (SEMICOLON identifier_stmt?) | (LEFT_BRACE identifier_stmt? RIGHT_BRACE);
+stmtend : (SEMICOLON) | (LEFT_BRACE identifier_stmt? RIGHT_BRACE);
deviate_replace_stmt : DEVIATE_KEYWORD string /* REPLACE_KEYWORD */ (SEMICOLON | (LEFT_BRACE (identifier_stmt |type_stmt | units_stmt | default_stmt | config_stmt | mandatory_stmt | min_elements_stmt | max_elements_stmt )* RIGHT_BRACE));
deviate_delete_stmt : DEVIATE_KEYWORD string /* DELETE_KEYWORD */ (SEMICOLON | (LEFT_BRACE (identifier_stmt |units_stmt | must_stmt | unique_stmt | default_stmt )* RIGHT_BRACE));
deviate_add_stmt : DEVIATE_KEYWORD string /*ADD_KEYWORD*/ (SEMICOLON | (LEFT_BRACE (identifier_stmt |units_stmt | must_stmt | unique_stmt | default_stmt | config_stmt | mandatory_stmt | min_elements_stmt | max_elements_stmt )* RIGHT_BRACE));
path_stmt : PATH_KEYWORD string stmtend;
leafref_specification : path_stmt;
enum_stmt : ENUM_KEYWORD string (SEMICOLON | (LEFT_BRACE (identifier_stmt |value_stmt | status_stmt | description_stmt | reference_stmt )* RIGHT_BRACE));
-enum_specification : enum_stmt (identifier_stmt | enum_stmt )+;
+enum_specification : enum_stmt (identifier_stmt | enum_stmt )*;
default_stmt : DEFAULT_KEYWORD string stmtend;
pattern_stmt : PATTERN_KEYWORD string (SEMICOLON | (LEFT_BRACE (identifier_stmt |error_message_stmt | error_app_tag_stmt | description_stmt | reference_stmt )* RIGHT_BRACE));
length_stmt : LENGTH_KEYWORD string (SEMICOLON | (LEFT_BRACE (identifier_stmt |error_message_stmt | error_app_tag_stmt | description_stmt | reference_stmt )* RIGHT_BRACE));