("Konstantin" "Chernenko" "chernenko@soviet.org")
("Mikhail" "Gorbachev" "gorbachev@soviet.org")
("Boris" "Yeltsin" "yeltsin@soviet.org")
("Konstantin" "Chernenko" "chernenko@soviet.org")
("Mikhail" "Gorbachev" "gorbachev@soviet.org")
("Boris" "Yeltsin" "yeltsin@soviet.org")