Complex sentence: The Polish Navy operates four of these aircraft, which were included in the purchase of two "Perry" class frigates from the United States Navy, now operating as ORP Generał Tadeusz Kościuszko and ORP Generał Kazimierz Pułaski.
Split into simpler sentences: The Polish Navy operates four of these aircraft, which were included in the purchase of two "Perry" class frigates from the United States Navy. The frigates are now operating as ORP Generał Tadeusz Kościuszko and ORP Generał Kazimierz Pułaski.