ARBITRARY:
directed: true
vcount: 6
edges: {
0 2
1 4
2 3
2 3
0 4
0 5
2 3
3 5
2 5
0 1
}

MUTUAL:
directed: true
vcount: 6
edges: {
0 2
1 4
2 3
2 3
0 4
0 5
2 3
3 5
2 5
0 1
2 0
4 1
3 2
3 2
4 0
5 0
3 2
5 3
5 2
1 0
}

ACYCLIC:
directed: true
vcount: 6
edges: {
0 2
1 4
2 3
2 3
0 4
0 5
2 3
3 5
2 5
0 1
}

RANDOM (edge count only):
10