This file contains 10 links of the form "zY", with "z" fixed and "Y" possibly varying.
Each link points to a webpage that in turn points to files of the form    "?zY*"
("?" is a single-character wildcard and "*" is a multiple-character wildcard.)


    za
    zb
    zf
    zi
    zm
    zn
    zp
    zr
    zx
    zy