This file points to 4 pairs of files of the form "?up*"
("?" is a single-character wildcard and "*" is a multiple-character wildcard.)
Crossing File
Backbone Overlay
1up8_A
1up8_A_sse
1upa_A
1upa_A_sse
1upk_A
1upk_A_sse
1upt_B
1upt_B_sse