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. Archie Morris:  I took the liberty of getting you some fitness balls . Start with the lighter _ one _ , and you squeeze ...
Nurse Samantha Taggart: Archie , you could n't pay me to touch your balls .

balls