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The Las Vegas Valley is a metropolitan area in the southern part of the U.S. state of  Nevada  and is the heart of the Las Vegas Paradise NV MSA also known as the Las Vegas Paradise  Henderson  MSA which includes all of Clark County Nevada .
 alternate names: Nevada, Henderson
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: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 alternate names: Nevada, Henderson