// Cells and their vertices.
#0={0,1,2,5}
#1={3,4,6,7,8,9}

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

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

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