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

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

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

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