I just wanna check if my String[] array contains "n" or "s".

```
String[] coordinatesExample = {"57.8136°s", "28.3496°e"};

private void isContains(String[] coordinates) {

    boolean contains = Arrays.asList(coordinates).contains("s");
        if (contains) {
            System.out.println("It works!");
        }else {
            System.out.println("RAKAMAKAFO");
        }

```

So I expected: "It works!", but
in fact: "RAKAMAKAFO"

What I did wrong?