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: danube
Output: 

 Which city is known as the 'Pearl of the Danube'?
Which European capital city lies at the confluence of the rivers Danube and Sava?
Which city stands at the confluence of the Sava and Danube rivers?