<?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">light-related concepts</topic></authority><related type="narrower"><topic>refraction</topic></related><related type="narrower"><topic>darkness</topic></related><related type="narrower"><topic>shade</topic></related><related type="narrower"><topic>shadows</topic></related><related type="narrower"><topic>luminescence</topic></related><related type="narrower"><topic>highlights</topic></related><related type="narrower"><topic>reflectance</topic></related><related type="narrower"><topic>polarization</topic></related><related type="narrower"><topic>incandescence</topic></related><related type="broader"><topic>energy-related concepts</topic></related><variant type="other"><topic>concepts, light-related</topic></variant><variant type="other"><topic>light-related concept</topic></variant> <note xml:lang="en"><![CDATA[ Energy-related concepts dealing with light.  ]]></note></mads>