[Question]: Is there a graph dataset with one type of nodes and multiple types of edges?

Thx for providing a comprehensive graph dataset loader.

I am recently working on heterogeneous graphs, which typically contains nodes and edges, both of different types. E.g., nodes has type paper, venue and so on, edge also represents different relations.

I wonder if there is a graph dataset, where there only exists one type of nodes and multiple types of edges. 