[PAR] [TLE] Japanese aircraft carrier Shinano [SEP] Shinano (信濃 ) , was an aircraft carrier built by the Imperial Japanese Navy (IJN) during World War II, the largest such built up to that time.  Laid down in May 1940 as the third of the "Yamato"-class battleship s, "Shinano"' s partially complete hull was ordered to be converted to a carrier following Japan's disastrous loss of four fleet carriers at the Battle of Midway in mid-1942. [PAR] [TLE] Yamato-class battleship [SEP] The "Yamato"-class battleships (大和型戦艦 , Yamato-gata senkan ) were battleships of the Imperial Japanese Navy (IJN) constructed and operated during World War II.  Displacing 72000 LT at full load, the vessels were the heaviest battleships ever constructed.  The class carried the largest naval artillery ever fitted to a warship, nine 460-millimetre (18.1 in) naval guns, each capable of firing 1460 kg shells over 42 km .  Two battleships of the class ("Yamato" and "Musashi" ) were completed, while a third ("Shinano" ) was converted to an aircraft carrier during construction.
[PAR] [TLE] Japanese aircraft carrier Shinano [ SEP ] Shinano ( 信濃 ) , was an aircraft carrier built by the Imperial Japanese Navy ( IJN ) during World War II , the largest such built up to that time . Laid down in May 1940 as the third of the " Yamato"-class battleship s , " Shinano " ' s partially complete hull was ordered to be converted to a carrier following Japan 's disastrous loss of four fleet carriers at the Battle of Midway in mid-1942 . [PAR] [TLE] Yamato - class battleship [ SEP ] The " Yamato"-class battleships ( 大和型戦艦 , Yamato - gata senkan ) were battleships of the Imperial Japanese Navy ( IJN ) constructed and operated during World War II . Displacing 72000 LT at full load , the vessels were the heaviest battleships ever constructed . The class carried the largest naval artillery ever fitted to a warship , nine 460-millimetre ( 18.1 in ) naval guns , each capable of firing 1460 kg shells over 42 km . Two battleships of the class ( " Yamato " and " Musashi " ) were completed , while a third ( " Shinano " ) was converted to an aircraft carrier during construction .
How many naval guns did these battleships carry, in which the Japanese aircraft carrier Shinano was the third of these battleships?
How many naval guns did these battleships carry , in which the Japanese aircraft carrier Shinano was the third of these battleships ?
nine
nine