Definition: Sometimes users of dialogue systems ask vague questions/queries from the system. In this case, the system asks them a clarifying question to be able to answer it correctly. In this task, you are given a question/query in natural language and your task is to ask a good clarifying question to understand the given question/query more precisely.

Positive Example 1 -
Input: Tell me about defender
Output: are you referring to the arcade game called defender

Positive Example 2 -
Input: I'm looking for information on hobby stores
Output: what location do you want to find a hobby store in

Negative Example 1 -
Input: Find me information about the Ritz Carlton Lake Las Vegas.
Output: do you want information about Ritz Carlton Lake now or later

Negative Example 2 -
Input: I'm looking for information on hobby stores
Output: why are you looking for information on stores

Now complete the following example -
Input: Which gps receiver I should buy
Output: 



Output:
are you interested in how gps was orginally made
what brand of gps device are you looking for
woud you like to know the many uses of gps
would you like information on how gps works
would you like to know how gps works
would you like to know your gps coordinates
are you interested in the accuracy of the gps
are you looking for gps accessories
are you looking for any specific device equipped with gps
are you looking for car navigators
are you looking for instructions on how to use your gps device
are you looking for reviews of gps apps
do you need directions somewhere
do you want to know how many gps satellites are active