Polo (Persian: چوگان "chogān") is a team sport played on horseback. The objective is to score goals against an opposing team. Players score by driving a small white plastic or wooden ball into the opposing team's goal using a long-handled mallet. The traditional sport of polo is played on a grass field up to 300 by . Each polo team consists of four riders and their mounts. Using only the above description and what you know about the world, "Polo is only played by incredibly wealthy people." is definitely correct, incorrect, or inconclusive? 