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: Kris Munroe:  They really do have 18 wheels .
Tiffany Welles: Yep , but the _ one _ we have to worry about is number 19 .
Kris Munroe: Which one is that ?
Tiffany Welles: The steering wheel .

wheels