<?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">trap doors</topic></authority><related type="broader"><topic>doors by form</topic></related><variant type="other"><topic>doors, trap</topic></variant><variant type="other"><topic>trap door</topic></variant><variant type="other"><topic>trapdoors</topic></variant> <note xml:lang="en"><![CDATA[ Doors fitted to an opening in a horizontal or nearly horizontal surface, as a floor or roof, through which a person ascends head first and descends feet first. ]]></note></mads>