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:  I need a weapon .
The Colonel: You have _ one _ .
Jason: But you do n't expect me to fight with this , do you ?
The Colonel: You have a sword . You learn how to use it .
Jason: It 's just a sword !
The Colonel: No , it is not just a sword . That sword killed the monster once and it can do it again . Study it . Learn how it works and we will all be saved . Now hurry !

weapon