<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31306259</termId><termName>aids to navigation</termName><termType>PT</termType><termNote><![CDATA[ Man-made objects such as buoys, lighthouses, lightships, Loran and other electronic systems, which aid mariners in determing position of safe course. ]]></termNote><termCreatedDate>2026-03-30 20:22:25</termCreatedDate><relation><relationType>UF</relationType><termId>31306260</termId><termName>ATON</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31306261</termId><termName>aid to navigation</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31306262</termId><termName>navigation, aid to</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31306263</termId><termName>navigation, aids to</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31298955</termId><termName>object genres by function</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31320955</termId><termName>beacons</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31320957</termId><termName>lighthouses</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31320959</termId><termName>navigational instruments</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31320966</termId><termName>buoys</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31320972</termId><termName>light stations</termName><termType>PT</termType></relation></term>  </Zthes>