Definition: In this task, you will use your knowledge about language (and common sense) to determine what element the marked number refers to. The numbers are marked with two underlines around them, like: _ number _. Your answer should be chosen from the given text, and should not contain other words.
Input: Dr. Spencer Reid:  ... So , at same point , he was most likely removed from his family . Now , I had Garcia widen the search of missing children to those in foster house and juvenile care facilities , all represented by those ten black dots .
Emily Prentiss: Ten kids fit our profile . That 's great .
Dr. Spencer Reid: Actually , each dot represents a _ thousand _ currently in system .
Emily Prentiss: Ten thousand children ?
Dr. Spencer Reid: Nebraska 's one of the nation 's highest per capita state ward populations .

children