<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">xenon</topic></authority><related type="other"><topic>xenon lamps</topic></related><related type="broader"><topic>inorganic material</topic></related><related type="broader"><topic>elements</topic></related><variant type="other"><topic>X</topic></variant><variant type="other"><topic>Xe</topic></variant> <note xml:lang="en"><![CDATA[ A heavy inert noble gas with symbol Xe or X and atomic number of 54, used principally in lamps, lasers, and as a general anaesthetic. ]]></note></mads>