<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31343490</termId><termName>rare earth elements</termName><termType>PT</termType><termNote><![CDATA[ Any of the group of metallic elements whose oxides are classed as rare earths. These include the lanthanide series, yttrium and scandium.   ]]></termNote><termCreatedDate>2026-03-30 20:32:38</termCreatedDate><relation><relationType>UF</relationType><termId>31343493</termId><termName>metals, rare earth</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31343494</termId><termName>rare earth element</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31343495</termId><termName>rare earth metal</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31343496</termId><termName>rare earth metals</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31343497</termId><termName>rare-earth element</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31343498</termId><termName>rare-earth elements</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31343499</termId><termName>rare-earth metal</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31343500</termId><termName>rare-earth metals</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31343491</termId><termName>REE</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31343492</termId><termName>elements, rare earth</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31319740</termId><termName>elements</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31373771</termId><termName>yttrium</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31373773</termId><termName>scandium</termName><termType>PT</termType></relation></term>  </Zthes>