Message
The value of @kwd-group-type is not on the permitted list of @kwd-group-types. Please query if this is a new @kwd-group-type.
Rule XPath:
This rule ASSERTS the following, raising an alert if FALSE:
not(@kwd-group-type) or @kwd-group-type = ('author', 'JEL', 'MSC2000', 'MSC2010',
'PACS', 'PhySH', 'SDG')