<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31411352</termId><termName>iron-gall ink</termName><termType>PT</termType><termNote><![CDATA[ Drawing material prepared by binding carbon particles in gall extract (from an abnormal growth on oak trees), that when applied to paper darkens by oxidation. ]]></termNote><termCreatedDate>2026-03-30 20:50:36</termCreatedDate><relation><relationType>UF</relationType><termId>31411353</termId><termName>ink, iron gall</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31411354</termId><termName>iron gall ink</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31374237</termId><termName>ink by composition or origin</termName><termType>PT</termType></relation></term>  </Zthes>