<?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">choppers</topic></authority><related type="other"><topic>chopping tools</topic></related><related type="broader"><topic>cutting tools</topic></related><variant type="other"><topic>chopper</topic></variant> <note xml:lang="en"><![CDATA[ Prehistoric pebble core tools from the early Palaeolithic period with only one crude, irregular cutting edge formed by unifacial flaking. These were held by the blunt edge. For the later, more evolved tools with a sinuous edge, use "chopping tools." ]]></note></mads>