+ private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(Rfc6020Mapping
+ .DEVIATION)
+ .add(Rfc6020Mapping.DESCRIPTION, 0, 1)
+ .add(Rfc6020Mapping.DEVIATE, 0, MAX)
+ .add(Rfc6020Mapping.REFERENCE, 0, 1)
+ .build();