A    B    C    D     E    F    G    H    I    J    K    L    M

N    O    P    Q    R    S    T    U    V    W    X   Y    Z

[X]      Upper and lower case "X" both get their shapes from a crossroads and usually call attention to an exact spot.  "Q" (k-i (eh)-y-u), "X" (i-k-s) and "Z"(s-i (eh)-e) do not have natural sounds.  Natural Sounds (From The K-12 Ebook)