Complex sentence: Two Japanese naval cruisers, one in 1911 and the second in 1938, where named after the Chikuma River while a 1940s aircraft carrier was named after the old Shinano Province.
Split into simpler sentences: Two Japanese naval cruisers, one launched in 1911 and the second in 1938, where named after the Chikuma River. A 1940s aircraft carrier was named after the old Shinano Province.