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. Marshall Cahill:  You do n't seem too pleased .
Lt. Columbo: Well , you know , Doctor , I 've been running into people by the dozens who could n't have murdered Professor Nicholson . I wish I could run into _ one _ who COULD have .

people