.put("one", "eins", 1)
            .put("two", "twei", 2);
    ImmutableTable<String, String, Integer> table = zis.combine(zat).build();
    ImmutableTable<String, String, Integer> expected =
        ImmutableTable.<String, String, Integer>builder()
            .put("one", "uno", 1)
            .put("two", "dos", 2)
            .put("one", "eins", 1)
            .put("two", "twei", 2)
            .build();