To pull this particular style of trick you require a schema definition that allows for one object to be expanded into a whole set of objects, and for the result

To pull this particular style of trick you require a schema definition that allows for one object to be expanded into a whole set of objects, and for the resulting data structure to be a tree rather than a simply a rooted directed graph. I don't know YAML well but I believe if you tried this trick with something like alias nodes then you would end up with a lol9 node with ten separate connections to a single lol8 node with ten separate connections to a single lol7 node and so on. This would not produce the same problem in the parser, though might trigger problems in whatever processed the resulting graph.