Gap size: -7bp    combination occurs in     layer 8     |
motif occurs in layer 8          | motif occurs in layer 8          |
F | T | T | T |
| OR |   Gap range:4~5bp   combination occurs in    layer 8    |
motif occurs in layer 8          | motif occurs in layer 8          |
T | T |
| OR |    Gap size: 3bp    combination occurs in     layer 8     |
motif occurs in layer 8          | motif occurs in layer 8          |
T | F | T | T |
|