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.

Mrs. Slocombe: You know , I always keep a couple of pound notes tucked away in me knickers , just for emergencies . Unfortunately , last week , I had an emergency .
Mr. Humphries: Ooh , what happened ?
Mrs. Slocombe: The elastic broke and I dropped one in the Haymarket and it blew off down the street . Two seconds later , the other _ one _ followed it .
Output:
notes