gamebookformat/expected/codewords.dot

digraph gamebook {
 1->2
 2->9
  4->3
4->2
  4->5
4->8
 6->5
6->3
6->4
 7->6
7->3
7->1
8->7
8->4
 9->3
 9->8
 9->5
9->4
}