<Apple, Orange>;

Same category goods,Then some people are called the apple;

The reply is the orange, the proof is a teammate.

<Digit>;

For example all digit (reduce 3),

Then some people call 15; The reply is 12.May be: Multiple, addend....

<Changeable Password>;

If (all white)...(for example some people are called the ambulance; Reply for milk)

<Chaotic Enemy Troop Password>,

Take the enemy troop member name as a password;

If enemy troop members named: JOHN, PETER, JOE, ANDY ......

P.S.

When has a password, do not be only called your self < teammate!I am the teammate >

This was equal to that tells others <You are not the teammate >