This file points to 4 pairs of files of the form    "?s5*"
("?" is a single-character wildcard and "*" is a multiple-character wildcard.)

Crossing File	Backbone Overlay
1s5a_A	1s5a_A_sse
1s5d_A	1s5d_A_sse
1s5p_A	1s5p_A_sse
1s5u_A	1s5u_A_sse