// Cells and their vertices.
#0={0}
#1={1,4,8,10}
#2={2,5,9,11}
#3={3,6,7}
#4={12,13,14,17,18,19,20,21,24,25,28,29,32,33}
#5={15,22,34}
#6={16,23,37}
#7={26,30,31}
#8={27,35,36}

// Induced graph on cells.
#0:.
#1:->#0.
#2:->#0.
#3:->#0,#1,#2.
#4:->#1,#2,#3.
#5:->#1.
#6:->#2.
#7:->#4,#5.
#8:->#4,#6.

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

// cell #1:
0[1]: {1} --> 1
1[4]: {2} --> 0,2,3
2[8]: {4} --> 1
3[10]: {3} --> 1

// cell #2:
0[2]: {1} --> 1
1[5]: {2} --> 0,2,3
2[9]: {4} --> 1
3[11]: {3} --> 1

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

// cell #4:
0[12]: {1,2} --> 3,5,7
1[13]: {1,2} --> 4,6,7
2[14]: {1,3,4} --> 3,4,5,6,7,12,13
3[17]: {1,4} --> 0,8
4[18]: {1,4} --> 1,9
5[19]: {1,3} --> 0,10
6[20]: {1,3} --> 1,11
7[21]: {2} --> 2
8[24]: {2,4} --> 3,7,12
9[25]: {2,4} --> 4,7,13
10[28]: {2,3} --> 5,7,13
11[29]: {2,3} --> 6,7,12
12[32]: {3,4} --> 8,11
13[33]: {3,4} --> 9,10

// cell #5:
0[15]: {3,4} --> 1
1[22]: {2} --> 0,2
2[34]: {1} --> 1

// cell #6:
0[16]: {3,4} --> 1
1[23]: {2} --> 0,2
2[37]: {1} --> 1

// cell #7:
0[26]: {1,3,4} --> 1,2
1[30]: {2,3,4} --> 0
2[31]: {1,2} --> 0

// cell #8:
0[27]: {1,3,4} --> 1,2
1[35]: {2,3,4} --> 0
2[36]: {1,2} --> 0