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: Whis:  The surviving Saiyans currently reside on planet 877 of world 4032 , a vibrant world called Earth .
Birusu: Earth ? I think I was there once . That 's the world with the boorish dinosaurs that I wiped out right ?
Whis: It appears one of the Saiyans , Son Goku , was the _ one _ who defeated Frieza .
Birusu: DEFEATED FRIEZA ?
Whis: Oh , my , Lord Bills !

Saiyans