<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31376729</termId><termName>thackstone</termName><termType>PT</termType><termNote><![CDATA[ Sandstone employed as roofing material in the upper Colne valley of England since the thirteenth century. ]]></termNote><termCreatedDate>2026-03-30 20:41:37</termCreatedDate><relation><relationType>UF</relationType><termId>31376730</termId><termName>thack-stones</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31376731</termId><termName>thackstones</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31346064</termId><termName>building stone</termName><termType>PT</termType></relation></term>  </Zthes>