<?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">brownstone</topic></authority><related type="narrower"><topic>Portland sandstone</topic></related><related type="narrower"><topic>Seneca sandstone</topic></related><related type="broader"><topic>ferruginous sandstone</topic></related> <note xml:lang="en"><![CDATA[ A brown or reddish-brown sandstone whose grains are generally coated with iron oxide. ]]></note></mads>