This file points to 6 pairs of files of the form    "?ch*"
("?" is a single-character wildcard and "*" is a multiple-character wildcard.)

Crossing File	Backbone Overlay
1chc	1chc_sse
1chd	1chd_sse
1chk_A	1chk_A_sse
1chm_A	1chm_A_sse
1chu_A	1chu_A_sse
3chb_D	3chb_D_sse