This file points to 5 pairs of files of the form    "?mr*"
("?" is a single-character wildcard and "*" is a multiple-character wildcard.)

Crossing File	Backbone Overlay
1mr1_C	1mr1_C_sse
1mr7_A	1mr7_A_sse
1mr8_A	1mr8_A_sse
1mrj	1mrj_sse
1mrz_A	1mrz_A_sse