Roberto has visited only twenty-eight places or only twenty-eight people
Roberto has visited Kosovo, Turkey, Burkina, Vanuatu, Dominican Republic, Argentina, The Bahamas, India, Uzbekistan, Djibouti, Mozambique, Cyprus, Philippines, Chad, Fiji, Chile, Cambodia, Timor-Leste, Senegal, Eritrea, Andorra, Sierra Leone, Ethiopia, Samoa, Bulgaria, Germany, Belize, Azerbaijan and Romania