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: Vulcan Ambassador Soval:  We do n't know what to do about Humans . Of all the species we 've made contact with , yours is the only _ one _ we ca n't define . You have the arrogance of Andorians , the stubborn pride of Tellarites . One moment , you 're as driven by your emotions as Klingons , and the next , you confound us by suddenly embracing logic .
Admiral Maxwell Forrest: I 'm sure those qualities are found in every species .
Vulcan Ambassador Soval: Not in such confusing abundance .

species