Definition: Given an open-ended topic (movie name, a persons name, an event, sports, etc) generate a simple trivia-type question.

Positive Example 1 -
Input: 1968 winter olympics
Output: Which Frenchman won the Alpine triple-crown at the 1968 Winter Olympics?

Positive Example 2 -
Input: 10 things i hate about you
Output: The 1999 film 10 Things I Hate About You is based on which Shakespeare play?

Negative Example 1 -
Input: the o2 arena
Output: What are the directions to reach the o2 arena from the London bridge?

Negative Example 2 -
Input: the o2 arena
Output: What's the most special thing about the o2 arena?

Now complete the following example -
Input: commonwealth of nations
Output: 

 Which former Portuguese African Colony joined the British Commonwealth in 1995?
Which Commonwealth country is nearest to the United Kingdom?
In the British Commonwealth, Canada is the largest country by area. Which Commonwealth country is the 2nd largest by area?
What is the only nation state of the Commonwealth of Nations on the mainland of South America?