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.

Dr. Elliot Reid: I wonder if they found a new head of medicine yet ?
The Janitor: Actually , they found _ one _ this morning .
Oscar the Grouch: All right , you knuckle heads ! Shape up ! I 'm watching you , John Dorian , and guess what ? My eyes never close !
The Janitor: Mine neither .
Dr. John 'J.D.' Dorian: I grew up on the street . Not the hood . Sesame Street .
Output:
head