You will be given a definition of a task first, then some input of the task.
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.

Emma: What 's that for ?
Tommy: To make sure he 's dead . There used to be a time it was hard to tell a comatose person from a dead one , so coroners tied bells to everybody in the morgue . So if they heard a ' ting ' , they knew somebody down there was n't quite ready to go .
Emma: So , why do you have _ one _ ?
Tommy: Well , I 'm ... I 'm a bit of a traditionalist .
Output:
bells