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: Head Elf:  What happened , Robbie ?
Robbie: I got tired of sweeping , then I saw these bits of toys lying around , and I thought , I 'll invent new toys . This is Sebastian Musclewhale .
Head Elf: Do whales have arms ?
Robbie: Sebastian has _ three _ . He needs them to fight his archenemy ... Octomonkey !

arms