This file points to 4 pairs of files of the form "?rx*"
("?" is a single-character wildcard and "*" is a multiple-character wildcard.)
Crossing File
Backbone Overlay
1rx0_A
1rx0_A_sse
1rxw_A
1rxw_A_sse
1rxx_A
1rxx_A_sse
1rxy_A
1rxy_A_sse