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: Doctor Doppler:  Well , Jim , this should be a wonderful opportunity for the two of us to get to know _ one _ and other . You know what they say . " Familiarity breeds ... " um ... well , " contempt " . But in our case ...

of