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: Jason:  You 're stupid !
Melissa Robbins: You 're stupid !
Jason: You 're stupid !
Melissa Robbins: What are we arguing about ?
Jason: Who is stupider .
Melissa Robbins: No , we need to get a video camera .
Jason: Why do n't we build _ one _ ?
Melissa Robbins: That 's stupid .
Jason: You 're stupid !
Melissa Robbins: You 're stupid !

camera