Why is it called C# Syntax Graph (but not C# Syntax Tree) in the Syntax Visualizer tool?

Question

Here is an image of the Roslyn Syntax Visualizer tool (part of Visual Studio):

As I can see we can use the View Directed Syntax Graph command to display this syntax tree window:

My question is: Why this window is called Syntax Graph but not Syntax Tree?

Is it because every tree is a graph, but then why didn't they choose the name Syntax Tree as more convenient? Why generalize with the Graph term?

If the syntax tree can be cyclic then can you provide me with an example of C# syntax being a Syntax Graph?

Answer 1

That's mostly cause Tree is a Graph ... that is A tree is a graph that has no cycles