<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31416471</termId><termName>signal towers</termName><termType>PT</termType><termNote><![CDATA[ General term for elevated structures, either open or enclosed, from which signals of any kind are sent, including telegraphic, electronic, or manual signals. Examples are towers in the Great Wall of China and towers used to relay railroad signals. ]]></termNote><termCreatedDate>2026-03-30 20:52:04</termCreatedDate><relation><relationType>UF</relationType><termId>31416472</termId><termName>signal tower</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31380800</termId><termName>towers</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31441923</termId><termName>railroad signal towers</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31381372</termId><termName>telecommunications towers</termName><termType>PT</termType></relation></term>  </Zthes>