<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31301961</termId><termName>tarnish</termName><termType>PT</termType><termNote><![CDATA[ A dull, discolored surface film caused by chemical deterioration, such as the film of silver sulfide that commonly forms on silver. ]]></termNote><termCreatedDate>2026-03-30 20:21:11</termCreatedDate><relation><relationType>BT</relationType><termId>31298281</termId><termName>conditions and effects for metals</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31320467</termId><termName>metal</termName><termType>PT</termType></relation></term>  </Zthes>