<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31436673</termId><termName>organic sulfide</termName><termType>PT</termType><termNote><![CDATA[ Compounds in which sulfur is bonded to two organic groups. ]]></termNote><termCreatedDate>2026-03-30 20:57:44</termCreatedDate><relation><relationType>UF</relationType><termId>31436674</termId><termName>organic sulfides</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31436675</termId><termName>sulfide, organic</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31410854</termId><termName>sulfides by general type</termName><termType>PT</termType></relation></term>  </Zthes>