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: Nicholas Arden:  You out of your mind ?
Grace Arden: Just a little . I ca n't quite seem to adjust : two daughters - in - law for only one son .
Nicholas Arden: Well , as long as you had only _ one _ , why 'd it have to be me ?

son