CREATE TABLE table_name_43 (sydney VARCHAR(255), gold_coast VARCHAR(255), auckland VARCHAR(255), melbourne VARCHAR(255), perth VARCHAR(255))
yes or no for the sydney with yes for melbourne, no for perth, no for auckland and no for gold coast?
    
SQL: SELECT sydney FROM table_name_43 WHERE melbourne = "yes" AND perth = "no" AND auckland = "no" AND gold_coast = "no"