Graph Nodes:
X1;X2;X3;X4;X5;X6;X7;X8;X9;X10;X11;X12;X13;X14;X15;X16;X17;X18;X19;X20;X21;X22;X23;X24;X25;X26;X27;X28;X29;X30;X31;X32;X33;X34;X35;X36;X37

Graph Edges:
1. X4 --> X5
2. X4 --> X7
3. X5 --> X2
4. X5 --> X3
5. X6 --> X1
6. X6 --> X5
7. X6 --> X7
8. X7 --> X36
9. X8 --> X9
10. X11 --> X10
11. X11 --> X12
12. X13 --> X34
13. X14 --> X15
14. X15 --> X34
15. X15 --> X37
16. X17 --> X26
17. X17 --> X31
18. X19 --> X20
19. X20 --> X21
20. X21 --> X34
21. X23 --> X22
22. X23 --> X24
23. X24 --> X21
24. X25 --> X18
25. X25 --> X24
26. X25 --> X26
27. X25 --> X31
28. X25 --> X32
29. X27 --> X30
30. X28 --> X29
31. X29 --> X30
32. X30 --> X26
33. X30 --> X31
34. X31 --> X16
35. X31 --> X18
36. X31 --> X32
37. X32 --> X20
38. X32 --> X33
39. X33 --> X16
40. X33 --> X34
41. X34 --> X35
42. X35 --> X9
43. X35 --> X10
44. X35 --> X12
45. X35 --> X36
46. X36 --> X37
