<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31353483</termId><termName>railroad signals</termName><termType>PT</termType><termNote><![CDATA[ Signals that govern the movement of trains, typically using flags or lights; generally located at the entrances of sections of railroad tracks. ]]></termNote><termCreatedDate>2026-03-30 20:35:24</termCreatedDate><relation><relationType>UF</relationType><termId>31353484</termId><termName>railroad signal</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31324537</termId><termName>signaling equipment</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31441923</termId><termName>railroad signal towers</termName><termType>PT</termType></relation></term>  </Zthes>