Returning feature dataset name for a feature class

Python noob here wondering if there's a direct way to return the name of a feature dataset for a feature class.

I know I can return the data source and extract the dataset name, but I figure there's got to be a way to directly return only the dataset name.

Along the same line, is there a way to check if a feature class belongs to a feature dataset?

Thanks in advance for any help.
Wes