user: Question: What is the Cross Code Debut for a player that had their Int'l Debut of RU Test New Zealand v Australia?
Columns: ['Player', "Int'l Debut", 'Year', 'Cross Code Debut', 'Date', 'Position']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Dally Messenger', '2nd RU Test Australia v New Zealand', '1907', 'RL New Zealand v Wales', '1 Jan 1908', 'Centre']
SQL:

assistant: SELECT "Cross Code Debut" FROM "Table" WHERE "Int'l Debut" = 'RU Test New Zealand v Australia';