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

Crossing File	Backbone Overlay
1fr2_A	1fr2_A_sse
1fr2_B	1fr2_B_sse
1fr3_A	1fr3_A_sse
1fre	1fre_sse
3fru_A	3fru_A_sse