<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31402746</termId><termName>triangles</termName><termType>PT</termType><termNote><![CDATA[ Polygons having three sides and three angles. ]]></termNote><termCreatedDate>2026-03-30 20:48:18</termCreatedDate><relation><relationType>UF</relationType><termId>31402747</termId><termName>triangle</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31402748</termId><termName>trigons</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31361605</termId><termName>polygons</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31362898</termId><termName>triangular</termName><termType>PT</termType></relation></term>  </Zthes>