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: Apex:  Blaze , Riptor , Wing Storm , Sky Fury . You are our best friends . Man and dragon fly as _ one _ ; do n't you remember ? A dragon and his rider are united . They can never be separated . Ever .

Man