A
  B
    F
    H
      R
      S
      T
    I
      O
      A
      Z
    Z
      H
  C
    I
      J
  D
    K
    L
      U
  E
    M
    N
      V
      W
    O
    P
      X
      Y
      Z
    Q
  F
    X
    Q
    S
  G
Préfixe : A B F H R S T I O A Z Z H C I J D K L U E M N V W O P X Y Z Q F X Q S G 
Postfixe : F R S T H O A Z I H Z B J I C K U L D M V W N O X Y Z P Q E X Q S F G A 
E and G are cousins: false
B and D are cousins: false
L and N are cousins: true