Pattern matching with instanceof and switch

Given this method, which calls return the value shown? In a case ... when line, the when part is an extra condition (a guard) that must also be true. Pick all that apply.

static String kind(Object o) {
    return switch (o) {
        case null -> "null";
        case Integer i when i > 5 -> "big";
        case Integer i -> "int";
        case String s -> "str " + s.length();
        default -> "other";
    };
}