<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31395780</termId><termName>captive balloons</termName><termType>PT</termType><termNote><![CDATA[ Unpowered round or pear-shaped airtight vessels designed to rise into the air when inflated with hot air or a gas, and which are tethered to the ground or another vehicle such as a ship. These may be manned or unmanned, and most usually used for observation, historically in a military context. ]]></termNote><termCreatedDate>2026-03-30 21:01:05</termCreatedDate><relation><relationType>UF</relationType><termId>31395781</termId><termName>captive balloon</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31426120</termId><termName>balloons</termName><termType>PT</termType></relation></term>  </Zthes>