Question: What is the menu id of the menu sponsored by Occidental and Oriental Steamship Company with the highest number of pages?
SQL: SELECT T2.menu_id FROM Menu AS T1 INNER JOIN MenuPage AS T2 ON T1.id = T2.menu_id WHERE T1.sponsor = 'OCCIDENTAL & ORIENTAL STEAMSHIP COMPANY' GROUP BY T2.menu_id ORDER BY COUNT(T2.page_number) DESC LIMIT 1