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I know about the graph theory but it has many kinds of graphs. E.g. "directed acyclic graph" to name one. I don't yet know the actual Graph Theory do I don't know all the kinds and their names. So what I am asking about is what specific kind this graph is?

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This is just a graph. Like water is just water. There is also salty water, and hot water, and cold water, but there is just water. This is just a graph, not any specific kind, simply a graph where you have nodes and links.

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