Once a vast fortification of 49 turrets, it ranked alongside Osaka and Nagoya as one of the country's greatest impregnable bastions.
Unlike Osaka and Nagoya, the fortification was found to be wanting.
mnli hypothesis: Unlike Osaka and Nagoya, the fortification was found to be wanting. premise: Once a vast fortification of 49 turrets, it ranked alongside Osaka and Nagoya as one of the country's greatest impregnable bastions.