<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>17051</termId><termName>Sector primario de Puerto Rico</termName><termType>PT</termType><termCreatedDate>1993-07-13 17:59:00</termCreatedDate><relation><relationType>BT</relationType><termId>10032</termId><termName>Estructura economica de Puerto Rico</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>9027</termId><termName>Sector primario de Iberoamerica</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>17050</termId><termName>Agricultura de Puerto Rico</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>10286</termId><termName>Mineria de Puerto Rico</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>33639</termId><termName>Pesca de Puerto Rico</termName><termType>PT</termType></relation></term>  </Zthes>