26100
 Herbert S. Klein , a historian of Latin America at Stanford and an author of studies on slavery in the region , said , '' The slave trade was in full development by the mid-16th century and would have brought African slaves to Mexico , though the primary work force remained Amerindians . '' 
 location contains: Latin America, Mexico
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
Answer:
 location contains: Latin America, Mexico