encoder.encode( "R", Collections.EMPTY_LIST );
encoder.encode( "A1", Arrays.asList( "R" ) );
encoder.encode( "A2", Arrays.asList( "R" ) );
encoder.encode( "A3", Arrays.asList( "R" ) );
encoder.encode( "B1", Arrays.asList( "R" ) );
encoder.encode( "B2", Arrays.asList( "R" ) );
encoder.encode( "B3", Arrays.asList( "R" ) );
encoder.encode( "B4", Arrays.asList( "B1", "B2" ) );
encoder.encode( "B5", Arrays.asList( "B1", "B3" ) );
encoder.encode( "B6", Arrays.asList( "B2", "B3" ) );
encoder.encode( "B7", Arrays.asList( "B4", "B5", "B6" ) );