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: Cleric #1: Energy barrier - a most powerful _ one _ .
Dante Chavalier: Can it be breached ?
Cleric #1: The witch 's magic pales to the might of our god . The infidels ' wall ... shall tumble before us .
Output:
barrier