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: Lemony Snicket:  Perhaps you 've been told never to shout " Fire " in a public place . When you shout " Fire , " and there is n't _ one _ , it can cause chaos . Of course , when you shout " Fire , " and there is one , it can cause chaos but also save lives . Still , there are times when shouting " Fire " can save lives , even when there is n't one . For example , you may be trapped in a motel room with your enemies waiting outside . Shouting " Fire " will cause the kind of chaos that will allow you to escape undetected . Therefore , the life it saves will be your own .

Fire