SE
https://dagrejs.github.io/project/dagre-d3/latest/demo/interactive-demo.html?graph=digraph%20finite_state_machine%20%7B%0A%09rankdir%3DLR%3B%0A%090%20-%3E%202%20%5Blabel%20%3D%20%22SS(B)%22%5D%3B%0A%090%20-%3E%201%20%5Blabel%20%3D%20%22SS(S)%22%5D%3B%0A%091%20-%3E%203%20%5Blabel%20%3D%20%22S(%24end)%22%5D%3B%0A%092%20-%3E%206%20%5Blabel%20%3D%20%22SS(b)%22%5D%3B%0A%092%20-%3E%205%20%5Blabel%20%3D%20%22SS(a)%22%5D%3B%0A%092%20-%3E%204%20%5Blabel%20%3D%20%22S(A)%22%5D%3B%0A%095%20-%3E%207%20%5Blabel%20%3D%20%22S(b)%22%5D%3B%0A%095%20-%3E%205%20%5Blabel%20%3D%20%22S(a)%22%5D%3B%0A%096%20-%3E%206%20%5Blabel%20%3D%20%22S(b)%22%5D%3B%0A%096%20-%3E%205%20%5Blabel%20%3D%20%22S(a)%22%5D%3B%0A%097%20-%3E%208%20%5Blabel%20%3D%20%22S(b)%22%5D%3B%0A%097%20-%3E%205%20%5Blabel%20%3D%20%22S(a)%22%5D%3B%0A%098%20-%3E%206%20%5Blabel%20%3D%20%22S(b)%22%5D%3B%0A%098%20-%3E%205%20%5Blabel%20%3D%20%22S(a)%22%5D%3B%0A%7D