Gap size: 15bp           combination occurs in            layer 10            |
   Gap size: 2bp    combination occurs in     layer 10     |        Gap size: 3bp        combination occurs in         layer 10         |
motif occurs in layer 10          | motif occurs in layer 10          | motif occurs in layer 10          |      Gap size: 8bp      combination occurs in       layer 10       |
    Gap size: 1bp     combination occurs in      layer 10      | motif occurs in layer 10          |
motif occurs in layer 10          | motif occurs in layer 10          |
F | F | F | F | T | F |
T | T | T | T | T | T |