<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31375498</termId><termName>hard water</termName><termType>PT</termType><termNote><![CDATA[ Water that contains magnesium, calcium or iron salts. ]]></termNote><termCreatedDate>2026-03-30 20:41:17</termCreatedDate><relation><relationType>UF</relationType><termId>31375499</termId><termName>water, hard</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31344802</termId><termName>water by property</termName><termType>PT</termType></relation></term>  </Zthes>