// Cells and their vertices. #0={0} #1={1,2,3,4,5,6,7,8,11} #2={9,10,12,13,14} // Induced graph on cells. #0:. #1:->#0. #2:->#1. // Individual cells. // cell #0: 0[0]: {} // cell #1: 0[1]: {2} --> 4 1[2]: {4} --> 3 2[3]: {2,4} --> 0,1,5,6,7 3[4]: {3,5} --> 1,5,6 4[5]: {1,3} --> 0,5,7 5[6]: {3} --> 2 6[7]: {2,5} --> 2,3,8 7[8]: {1,4} --> 2,4,8 8[11]: {1,5} --> 6,7 // cell #2: 0[9]: {2,3,5} --> 2,3 1[10]: {1,3,4} --> 2,3 2[12]: {2,4} --> 0,1 3[13]: {1,3,5} --> 0,1,4 4[14]: {1,2,4,5} --> 2,3