Complex sentence: However, since quality weapons were expensive, the civilians had to use what equipment they had; the Ryukyu oar (in Okinawa "eku" or "eiku") came to represent the naginata.
Split into simpler sentences: However, since quality weapons were expensive, the civilians had to use what equipment they had. The Ryukyu oar, in Okinawa "Eku" or "Eiku", came to represent the naginata.