You will be given a definition of a task first, then some input of the task.
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

Which Scottish actress played Catherine of Aragon in the 1970 TV series, The Six Wives of Henry VIII, but is much better known for her role as Margaret Meldew in One Foot in the Grave?
Output:
the six wives of henry viii