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.

Michael Westen:  Creating an explosive device in the field requires a strong knowledge of chemistry and the ability to improvise with whatever equipment happens to be lying around ... An old fire extinguisher makes an ideal compression chamber . Add some metal shavings and the right cleaning supplies , and you can serve up a bomb that can blast through a cinderblock wall .
Fiona Glenanne: Why is it you can never find a good sodium hydroxide solution when you need _ one _ ?
solution

Kevin Levin:  The robot we fought tonight was a custom job . Created by the weapon masters of Techadon . It must 've cost a fortune . Somebody put a hit on you .
Ben Tennyson: I 'm not worried .
Kevin Levin: You should be . The Techadons will keep coming each one'll be stronger than the _ one _ before . And they wo n't stop until you 're destroyed .
Techadon

Miley Stewart:  Well , he needs to help me , cause I won a Booty
Lilly Truscott: Good , cause you need _ one _

Booty