What is the menu id of the menu sponsored by Occidental and Oriental Steamship Company with the highest number of pages?
sponsored by Occidental and Oriental Steamship Company refers to sponsor = 'OCCIDENTAL & ORIENTAL STEAMSHIP COMPANY'; highest number of pages refers to MAX(COUNT(page_number));
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