PARSE_ERROR_MESSAGES = {1: 'RDF 1.0 XML serialization feature not yet supported: %s', 10: 'Invalid predicate in RDF base URI: %s', 20: 'Only member Attrs or members allowed on a container object', 30: 'Invalid container type: %s', 40: 'The value of property %s must be a single object or a string literal.', 50: '%s, a non-empty property element must not have property attributes.', 51: '%s, a non-empty property element must not have a resource attribute.'}