<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31343254</termId><termName>nitrate</termName><termType>PT</termType><termNote><![CDATA[ A salt or ester of nitric acid. ]]></termNote><termCreatedDate>2026-03-30 20:32:34</termCreatedDate><relation><relationType>UF</relationType><termId>31343255</termId><termName>nitrates</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31319736</termId><termName>compounds</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31373592</termId><termName>ammonium nitrate</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31373594</termId><termName>copper nitrate</termName><termType>PT</termType></relation></term>  </Zthes>