Chilean citizens vote Sunday to choose a president.Seven people are competing for the country's top position.Public opinion studies show two candidates leading the race: Jose Antonio Kast and Gabriel Boric.Kast and Boric are widely considered to hold extreme political positions: Kast as a conservative, Boric as a liberal.The vote is the first presidential ballot in Chile since a civil uprising began in 2019 over economic inequality.Demonstrations as well as riots took place for months.Two years later, an effort to rewrite the country's constitution is in process.Chile has been a democracy for more than 30 years following the military dictatorship of General Augusto Pinochet.Generally moderate political parties have led the country.Chile has experienced so much economic growth that it is seen as the model to follow in South America.