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.

Q: Roxy Preston: How do you know so much about ghosts ?
Jake Griffin: Takes one to know _ one _ .

A: ghosts
****
Q: Gordie Boggs: Hey kid ! Move your fat head . I ca n't see the fight .
Sean Dawkins: Sorry , Uncle Billy said these were good seats .
Gordie Boggs: Uncle Billy sucks !
Sean Dawkins: Hey , Uncle Billy lost his right nut in ' nam .
Gordie Boggs: Well kick him in his left nut when you see him . These seats bite !
Sean Dawkins: If you only have _ one _ left , is it still your left nut ?

A: nut
****
Q: Olsen: I appreciate you letting me observe that brain operation today .
Dr. Michael Hfuhruhurr: It would have been more complicated if it had needed _ one _ but since you wanted to observe my technique ...

A:
operation
****