// Cells and their vertices.
#0={0}
#1={4}
#2={1,8,13,20,31}
#3={2,10,23,27,38}
#4={3,9,12,19,30}
#5={5,14,21}
#6={6,11,24,29,40}
#7={7,15,22}
#8={16,25,41}
#9={17,34,42}
#10={18,35,43}
#11={36,48,52}
#12={26,32,37,44}
#13={28,33,39,46}
#14={45,47,49,51}
#15={50}

// Induced graph on cells.
#0:.
#1:.
#2:->#0,#1.
#3:->#0.
#4:->#0,#1.
#5:->#3.
#6:->#1.
#7:->#6.
#8:->#2,#4.
#9:->#2,#3,#4,#8.
#10:->#2,#4,#6,#8.
#11:->#2,#4,#8.
#12:->#3,#4,#5,#8,#9,#11.
#13:->#2,#6,#7,#8,#10,#11.
#14:->#3,#6,#8,#9,#10.
#15:->#11,#12,#13,#14.

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

// cell #1:
0[4]: {}

// cell #2:
0[1]: {2} --> 1,2
1[8]: {1} --> 0
2[13]: {3} --> 0,3
3[20]: {2} --> 2,4
4[31]: {1} --> 3

// cell #3:
0[2]: {1} --> 1
1[10]: {2} --> 0,2
2[23]: {3} --> 1,3
3[27]: {2} --> 2,4
4[38]: {1} --> 3

// cell #4:
0[3]: {2} --> 1,2
1[9]: {1} --> 0
2[12]: {3} --> 0,3
3[19]: {2} --> 2,4
4[30]: {1} --> 3

// cell #5:
0[5]: {1,2} --> 1
1[14]: {1,3} --> 0,2
2[21]: {2} --> 1

// cell #6:
0[6]: {1} --> 1
1[11]: {2} --> 0,2
2[24]: {3} --> 1,3
3[29]: {2} --> 2,4
4[40]: {1} --> 3

// cell #7:
0[7]: {1,2} --> 1
1[15]: {1,3} --> 0,2
2[22]: {2} --> 1

// cell #8:
0[16]: {1,3} --> 1
1[25]: {2} --> 0,2
2[41]: {3} --> 1

// cell #9:
0[17]: {1,2} --> 1
1[34]: {1,3} --> 0,2
2[42]: {2} --> 1

// cell #10:
0[18]: {1,2} --> 1
1[35]: {1,3} --> 0,2
2[43]: {2} --> 1

// cell #11:
0[36]: {1,2} --> 1
1[48]: {1,3} --> 0,2
2[52]: {2} --> 1

// cell #12:
0[26]: {2,3} --> 2
1[32]: {1,2} --> 2
2[37]: {1,3} --> 0,1,3
3[44]: {1,2} --> 2

// cell #13:
0[28]: {2,3} --> 2
1[33]: {1,2} --> 2
2[39]: {1,3} --> 0,1,3
3[46]: {1,2} --> 2

// cell #14:
0[45]: {1,2} --> 3
1[47]: {1,2} --> 3
2[49]: {2,3} --> 3
3[51]: {1,3} --> 0,1,2

// cell #15:
0[50]: {1,2,3}