<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31456894</termId><termName>balsa</termName><termType>PT</termType><termNote><![CDATA[ The wood of a fast-growing tropical bombaceous tree that is the lightest and softest wood used commercially. The white to tan-color, soft wood has a straight grain, coarse texture and is relatively strong. Balsa wood is easily carved and often used for model airplanes and toys. Balsa is also used as a substitute for cork in insulation, flats, life preservers, and buoys. ]]></termNote><termCreatedDate>2026-03-30 21:02:59</termCreatedDate><relation><relationType>UF</relationType><termId>31456895</termId><termName>balsa wood</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31456896</termId><termName>corkwood</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31438267</termId><termName>softwood</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31468438</termId><termName>Ochroma lagopus</termName><termType>PT</termType></relation></term>  </Zthes>