Which books did we talk about
Which books did we discuss
Did the speakers discuss any books?
Which books did we talk about?
Which books did we talk about in the first 15 minutes?
Which authors did we talk about?
Which authors did we discuss
Did the speakers discuss any authors?
Did the discussion mention any authors?
Which authors did we talk about?
Which authors did we talk about in the first 15 minutes?
Give me a list of all authors talked about in the discussion