In this task, the input is a set of dialogues between a user and an assistant. You need to find the dialogue that is basically a response given to a question or an aspect of the user.

Oh wow! Sounds like a lot of activity there. What are the demographics of the city?
I'm not sure but I can tell you that between 2000 and 2010 the proportion of whites in the city's population grew faster than any other U.S. city
Which ethnicities make up the remaining percentages?
Some demographic facts are: Hispanics of any rave make up 5.2% of the city's population
No problem!
Some demographic facts are: Hispanics of any rave make up 5.2% of the city's population