1164
The Citizens Area Transit of RTCSNV officially started service in December 1992 and for a time there were technically two public transit systems in  Las Vegas  until  LVTS  faded away .
 city of headquarters: Las Vegas, LVTS
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:
 city of headquarters: Las Vegas, LVTS