<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31355599</termId><termName>centerboards</termName><termType>PT</termType><termNote><![CDATA[ Pivoting boards mounted in a casing or trunk amidships, that is raised or lowered throught the bottom of a vessel to provide stability. For similar, non-pivoting, removable boards, use "daggerboards." ]]></termNote><termCreatedDate>2026-03-30 20:35:52</termCreatedDate><relation><relationType>UF</relationType><termId>31355600</termId><termName>centerboard</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31355601</termId><termName>centreboard</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31325084</termId><termName>watercraft components</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31355602</termId><termName>daggerboards</termName><termType>PT</termType></relation></term>  </Zthes>