// Cells and their vertices.
#0={0}
#1={1,5}
#2={2,8}
#3={3,6,7,11,12}
#4={4,9,10,15,16,17}
#5={13,18}
#6={14,20}
#7={19}
#8={21}
#9={22}
#10={23}
#11={24}
#12={25}

// Induced graph on cells.
#0:.
#1:->#0.
#2:->#0.
#3:->#0,#1,#2.
#4:->#1,#2,#3.
#5:->#1,#3,#4.
#6:->#2,#3,#4.
#7:->#3.
#8:->#4,#5,#7.
#9:->#4,#6.
#10:->#4,#5.
#11:->#4,#6,#7.
#12:->#8,#9,#10,#11.

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

// cell #1:
0[1]: {3} --> 1
1[5]: {4} --> 0

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

// cell #3:
0[3]: {1,4} --> 1,2
1[6]: {2,4} --> 0,3,4
2[7]: {1,3} --> 0,3,4
3[11]: {3} --> 1
4[12]: {2} --> 2

// cell #4:
0[4]: {2,3} --> 1,2
1[9]: {2,4} --> 0,3,4
2[10]: {1,3} --> 0,4,5
3[15]: {3,4} --> 1
4[16]: {1,4} --> 1,2
5[17]: {1,2} --> 2

// cell #5:
0[13]: {1,3,4} --> 1
1[18]: {2,4} --> 0

// cell #6:
0[14]: {1,2,4} --> 1
1[20]: {1,3} --> 0

// cell #7:
0[19]: {2,3}

// cell #8:
0[21]: {2,3,4}

// cell #9:
0[22]: {1,3,4}

// cell #10:
0[23]: {1,2,4}

// cell #11:
0[24]: {1,2,3}

// cell #12:
0[25]: {1,2,3,4}