<?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">[materials by physical form]</topic></authority><related type="narrower"><topic>tile</topic></related><related type="narrower"><topic>[fiber and fiber by product]</topic></related><related type="narrower"><topic>aerosol</topic></related><related type="narrower"><topic>cable</topic></related><related type="narrower"><topic>crust</topic></related><related type="narrower"><topic>crystal</topic></related><related type="narrower"><topic>colloid</topic></related><related type="narrower"><topic>[materials by granularity]</topic></related><related type="narrower"><topic>mixtures</topic></related><related type="narrower"><topic>laminate</topic></related><related type="narrower"><topic>paver</topic></related><related type="narrower"><topic>pencil</topic></related><related type="broader"><topic>materials by form</topic></related></mads>