<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31478261</termId><termName>Portland sandstone</termName><termType>PT</termType><termNote><![CDATA[ Stone of English origin consisting of fossils cemented together with lime. ]]></termNote><termCreatedDate>2026-03-30 21:08:47</termCreatedDate><relation><relationType>UF</relationType><termId>31478262</termId><termName>Portland stone</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31478263</termId><termName>sandstone, Portland</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31471302</termId><termName>brownstone</termName><termType>PT</termType></relation></term>  </Zthes>