The Cobb County Basketball Conference (CCBC) is an amateur basketball association. Cobb County is made up of several cities; each city has one team that represents it in the CCBC. A few cities do not yet have teams. Each team has a maximum of 12 players and a minimum of nine players. Each team has a head coach and may also have up to two part-time coaches (for example, offensive and defensive coaches). All head coaches receive a salary--part time coaches receive hourly wages based on their experience and level of education. Each team plays two games against each of the other teams during the season --one as the home team, the other as the visitor team. Given the above information, create an ER data model containing all the relevant entities. Specify identifiers, attributes, relationship name, type, and cardinalities.