<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31321867</termId><termName>drainage systems</termName><termType>PT</termType><termNote><![CDATA[ Irrigation or piping network within a structure that conveys sewage, rainwater, or other material from point of entry to point of disposal, such as a public sewer. ]]></termNote><termCreatedDate>2026-03-30 20:26:47</termCreatedDate><relation><relationType>UF</relationType><termId>31321868</termId><termName>drainage networks</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31321869</termId><termName>drainage system</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31321870</termId><termName>networks, drainage</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31321871</termId><termName>systems, drainage</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31306819</termId><termName>infrastructural systems</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>31402783</termId><termName>man-made hydrographic features</termName><termType>PT</termType></relation></term>  </Zthes>