<?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">weirs</topic></authority><related type="narrower"><topic>wasteweirs</topic></related><related type="broader"><topic>dams by function</topic></related><variant type="other"><topic>weir</topic></variant> <note xml:lang="en"><![CDATA[ Barriers or dams across waterways to regulate water level or divert or measure water flow, for example, to drive a mill wheel or as constructed on a canal or navigable river to retain the water and prevent overflow. ]]></note></mads>