<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31464795</termId><termName>pyramid pianos</termName><termType>PT</termType><termNote><![CDATA[ Upright grand pianos in the form of a truncated pyramid, developed in the 18th century and remaining popular until the early 19th. ]]></termNote><termCreatedDate>2026-03-30 21:05:06</termCreatedDate><relation><relationType>UF</relationType><termId>31464796</termId><termName>pianos, pyramid</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31464797</termId><termName>pyramid piano</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31449130</termId><termName>upright grand pianos</termName><termType>PT</termType></relation></term>  </Zthes>