CREATE TABLE table_name_30 (adelaide VARCHAR(255), auckland VARCHAR(255), melbourne VARCHAR(255), sydney VARCHAR(255), perth VARCHAR(255))
Which Adelaide has a Sydney of yes, a Perth of no, a Melbourne of yes, and an Auckland of no?
    
SQL: SELECT adelaide FROM table_name_30 WHERE sydney = "yes" AND perth = "no" AND melbourne = "yes" AND auckland = "no"