// Cells and their vertices.
#0={0,1,2,5,6,8,9,11}
#1={3,4,7,10,12,13,14}
#2={15}

// Induced graph on cells.
#0:.
#1:->#0.
#2:->#1.

// Individual cells.
// cell #0:
0[0]: {1,4} --> 3,4
1[1]: {3,4} --> 3
2[2]: {1,2,4} --> 4,7
3[5]: {2,4} --> 0,1,5
4[6]: {1,3} --> 0,2,5
5[8]: {2,3} --> 3,4,7
6[9]: {1,3,4} --> 4,7
7[11]: {2,4} --> 5,6

// cell #1:
0[3]: {2,3,4} --> 1
1[4]: {1,3,4} --> 0,2
2[7]: {1,2,4} --> 1,3
3[10]: {1,2,3} --> 2,5
4[12]: {2,3,4} --> 6
5[13]: {1,2,4} --> 3,6
6[14]: {1,3,4} --> 4,5

// cell #2:
0[15]: {1,2,3,4}