hmmmm

        interface IBaseNode{}
        class baseNode : IBaseNode{}

        interface IOtherBaseNode{}
        class otherBaseNode : IOtherBaseNode{}

        class Node1 : IBaseNode,IOtherBaseNode {}
        class Node2 : IBaseNode,IOtherBaseNode {}
        class Node3 : IBaseNode,IOtherBaseNode {}
        class Node4 : IBaseNode,IOtherBaseNode {}