<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31352011</termId><termName>undersea hills</termName><termType>PT</termType><termNote><![CDATA[ Hills on the sea floor with elevations, usually rising less than 500 meters. ]]></termNote><termCreatedDate>2026-03-30 20:35:00</termCreatedDate><relation><relationType>UF</relationType><termId>31352012</termId><termName>hills, undersea</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31352013</termId><termName>undersea hill</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31324173</termId><termName>undersea landforms</termName><termType>PT</termType></relation></term>  </Zthes>