Detailed Instructions: 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: Vissian Chief Engineer: You might find this difficult to believe , but this polymer is composed of over 200 naturally occurring elements .
Commander Charles 'Trip' Tucker III: That 's impossible !
Vissian Chief Engineer: I read in your database that you 've discovered only _ 92 _ . I understand how this might seem unnerving .
Commander Charles 'Trip' Tucker III: A lot of things around here do , but , um ... I 'm trying to keep an open mind .
A:
elements