A15849 | Is It a Cat?

You were walking down the street and heard a sound. The sound was described by the string $s$ consisting of lowercase and uppercase Latin characters. Now you want to find out if the sound was a cat meowing.

For the sound to be a meowing, the string can only contain the letters 'm', 'e', 'o' and 'w', in either uppercase or lowercase. Also:

- string must start with non-empty sequence consisting only of characters 'm' or 'M'
- it must be immediately followed by non-empty sequence consisting only of characters 'e' or 'E'
- it must be immediately followed by non-empty sequence consisting only of characters 'o' or 'O'
- it must be immediately followed by non-empty sequence consisting only of characters 'w' or 'W', this sequence ends the string, after it immediately comes the string end

For example, strings "meow", "mmmEeOWww", "MeOooOw" describe a meowing, but strings "Mweo", "MeO", "moew", "MmEW", "meowmeow" do not.

Determine whether the sound you heard was a cat meowing or something else.

The first line of input data contains a single integer $t$ ( $1 \le t \le 10^4$ ) — the number of test cases.

The description of the test cases follows.

The first line of each test case contains an integer $n$ ( $1 \le n \le 50$ ) — the length of the string describing the sound.

The second line of each test case contains a string $s$ of $n$ characters. The string describes the sound you heard and consists only of lowercase and uppercase Latin letters.

For each test case, output on a separate line:

- YES if the sound was a cat meowing;
- NO otherwise.

You can output YES and NO in any case (for example, strings yEs, yes, Yes and YES will be recognized as positive response).