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

// Induced graph on cells.
#0:.
#1:->#0.
#2:.
#3:->#2.
#4:->#0,#2.
#5:->#1,#3,#4.

// Individual cells.
// cell #0:
0[0]: {}

// cell #1:
0[1]: {2} --> 1
1[4]: {1} --> 0,2
2[8]: {2} --> 1

// cell #2:
0[2]: {}

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

// cell #4:
0[6]: {2} --> 1
1[7]: {1} --> 0,2
2[11]: {2} --> 1

// cell #5:
0[10]: {1,2}