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: Peggy Carter:  Considering this will be your home for the foreseeable future perhaps you should start decorating .
Dottie Underwood: It takes more than six walls to hold me .
Peggy Carter: _ Six _ ?
Dottie Underwood: We 're in a cube , Peggy . try to keep up .

walls