Incidence matrix
2N * * * * * * * * | 1 1 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 | 1 0 0 1 1 0 0 0 1 0 0 rg/-b
* 2N * * * * * * * | 1 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 | 1 0 0 1 1 0 0 1 0 0 0 rg/-s
* * 2N * * * * * * | 0 0 1 1 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 | 0 1 0 1 0 1 0 0 0 1 0 rb/-g
* * * 2N * * * * * | 0 0 1 1 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 | 0 1 0 1 0 1 0 1 0 0 0 rb/-s
* * * * 2N * * * * | 0 0 0 0 0 0 1 0 1 1 0 0 0 0 0 0 0 0 0 1 1 | 0 0 0 2 0 0 1 0 1 1 0 rs/-g-b
* * * * * 2N * * * | 0 0 0 0 1 1 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 | 0 0 1 0 1 1 0 0 0 0 1 gb/-r
* * * * * * 2N * * | 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 | 0 0 1 0 1 1 0 1 0 0 0 gb/-s
* * * * * * * 2N * | 0 0 0 0 0 0 0 0 0 0 1 0 1 1 0 0 0 0 1 0 1 | 0 0 0 0 2 0 1 0 1 0 1 gs/-r-b
* * * * * * * * 2N | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 0 | 0 0 0 0 0 2 1 0 0 1 1 bs/-r-g
---------------------------+-------------------------------------------------------------+------------------------------
1 1 0 0 0 0 0 0 0 | 2N * * * * * * * * * * * * * * * * * * * * | 1 0 0 1 0 0 0 0 0 0 0 rg:r
1 1 0 0 0 0 0 0 0 | * 2N * * * * * * * * * * * * * * * * * * * | 1 0 0 0 1 0 0 0 0 0 0 rg:g
0 0 1 1 0 0 0 0 0 | * * 2N * * * * * * * * * * * * * * * * * * | 0 1 0 1 0 0 0 0 0 0 0 rb:r
0 0 1 1 0 0 0 0 0 | * * * 2N * * * * * * * * * * * * * * * * * | 0 1 0 0 0 1 0 0 0 0 0 rb:b
0 0 0 0 0 1 1 0 0 | * * * * 2N * * * * * * * * * * * * * * * * | 0 0 1 0 1 0 0 0 0 0 0 gb:g
0 0 0 0 0 1 1 0 0 | * * * * * 2N * * * * * * * * * * * * * * * | 0 0 1 0 0 1 0 0 0 0 0 gb:b
1 0 0 0 1 0 0 0 0 | * * * * * * 2N * * * * * * * * * * * * * * | 0 0 0 1 0 0 0 0 1 0 0
0 1 0 1 0 0 0 0 0 | * * * * * * * 2N * * * * * * * * * * * * * | 0 0 0 1 0 0 0 1 0 0 0
0 0 1 0 1 0 0 0 0 | * * * * * * * * 2N * * * * * * * * * * * * | 0 0 0 1 0 0 0 0 0 1 0
0 0 0 0 2 0 0 0 0 | * * * * * * * * * N * * * * * * * * * * * | 0 0 0 2 0 0 0 0 0 0 0
1 0 0 0 0 0 0 1 0 | * * * * * * * * * * 2N * * * * * * * * * * | 0 0 0 0 1 0 0 0 1 0 0
0 1 0 0 0 0 1 0 0 | * * * * * * * * * * * 2N * * * * * * * * * | 0 0 0 0 1 0 0 1 0 0 0
0 0 0 0 0 1 0 1 0 | * * * * * * * * * * * * 2N * * * * * * * * | 0 0 0 0 1 0 0 0 0 0 1
0 0 0 0 0 0 0 2 0 | * * * * * * * * * * * * * N * * * * * * * | 0 0 0 0 2 0 0 0 0 0 0
0 0 1 0 0 0 0 0 1 | * * * * * * * * * * * * * * 2N * * * * * * | 0 0 0 0 0 1 0 0 0 1 0
0 0 0 1 0 0 1 0 0 | * * * * * * * * * * * * * * * 2N * * * * * | 0 0 0 0 0 1 0 1 0 0 0
0 0 0 0 0 1 0 0 1 | * * * * * * * * * * * * * * * * 2N * * * * | 0 0 0 0 0 1 0 0 0 0 1
0 0 0 0 0 0 0 0 2 | * * * * * * * * * * * * * * * * * N * * * | 0 0 0 0 0 2 0 0 0 0 0
0 0 0 0 0 0 0 1 1 | * * * * * * * * * * * * * * * * * * 2N * * | 0 0 0 0 0 0 1 0 0 0 1
0 0 0 0 1 0 0 0 1 | * * * * * * * * * * * * * * * * * * * 2N * | 0 0 0 0 0 0 1 0 0 1 0
0 0 0 0 1 0 0 1 0 | * * * * * * * * * * * * * * * * * * * * 2N | 0 0 0 0 0 0 1 0 1 0 0
---------------------------+-------------------------------------------------------------+------------------------------
2 2 0 0 0 0 0 0 0 | 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 | N * * * * * * * * * * rg
0 0 2 2 0 0 0 0 0 | 0 0 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 | * N * * * * * * * * * rb
0 0 0 0 0 2 2 0 0 | 0 0 0 0 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 | * * N * * * * * * * * gb
1 1 1 1 2 0 0 0 0 | 1 0 1 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 | * * * 2N * * * * * * * r
1 1 0 0 0 1 1 2 0 | 0 1 0 0 1 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 | * * * * 2N * * * * * * g
0 0 1 1 0 1 1 0 2 | 0 0 0 1 0 1 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 | * * * * * 2N * * * * * b
0 0 0 0 1 0 0 1 1 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 | * * * * * * 2N * * * * s
0 1 0 1 0 0 1 0 0 | 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 0 0 | * * * * * * * 2N * * * -s
1 0 0 0 1 0 0 1 0 | 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 1 | * * * * * * * * 2N * * -b
0 0 1 0 1 0 0 0 1 | 0 0 0 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 1 0 | * * * * * * * * * 2N * -g
0 0 0 0 0 1 0 1 1 | 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 1 0 0 | * * * * * * * * * * 2N -r