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

Crossing File	Backbone Overlay
1qi9_A	1qi9_A_sse
1qip_A	1qip_A_sse
1qis_A	1qis_A_sse
1qiu_A	1qiu_A_sse