The NCAA (National Collegiate Athletic Association) wants to develop a database to keep track of information about college basketball. Each university team belongs to only one conference (e.g., the University of Houston belongs to Conference USA; the University of Cincinnati belongs to the Big East Conference, etc.); but a few teams may not belong to any conference. A conference has several teams; no conference has less than five (5) teams. Each team can have a maximum of twenty (20) players and a minimum of thirteen (13) players. Each player can play for only one team. Each team has from three (3) to seven (7) coaches on its coaching staff and a coach works for only one team. Lots of games are played in each university location every year; but a game between any two universities is played at a given location only one time a year. Three referees from a larger pool of referees are assigned to each game. A referee can work several games; however, some referees may not be assigned to any game. Players are called players because they play in games; in fact several games. A game involves at least ten players. It is possible that some players simply sit on the bench and do not play in any game. Player performance statistics (i.e., points scored, rebounds, assists, minutes played, and personal fouls committed) are recorded for each player for every game. Information collected about a game includes the final score, the attendance, and the date of the game. During the summer months, some of the players serve as counselors in summer youth basketball camps. These camps are identified by their unique campsite location (e.g., Mason, Bellaire, Kenwood, League City, etc.). Each camp has at least three (3) players who serve as counselors, and a player serving as a counselor may work in a number of camps. A player can be identified by student number (i.e., Social Security number) only. The other attributes for a player include name, major, and grade point average. For a coach, relevant attributes include name, title (e.g., head coach, assistant coach), salary, address, and telephone number. Attributes for a referee include name, salary, years of experience, address, telephone number, and certifications. Both coaches and referees are identified by their personal NCAA identification number. A team is identified by the name of the university (i.e., team). Other team attributes include current ranking, capacity of home court, and number of players. Each conference has a unique name, number of teams, and an annual budget. For the basketball camps, data is available on the campsite (i.e., location) and the number of courts. Develop a Presentation Layer ER model for the NCAA database. The ERD should be fully specified with the unique identifiers, other attributes for each entity type, and the relationship types that exist among the various entity types. All business rules that can be captured in the ERD must be present in the ERD. Any business rule that cannot be captured in the ERD should be specified as part of a list of semantic integrity constraints. Hint: No more than seven entity types are needed to complete this design.

I only need the drawn diagram, nothing else.