Draw an Enhanced ER model for a factory database. Make sure to include details like cardinality ratios, participation constraints, candidate keys, and subclasses indicating if they are overlap or disjoint.

• Builders have a company name, unique license ID, and a rebate code.
• Managers have a start date.
• Managers have a unique ID.
• People must be either a builder or a manager.
• Objects have a unique code, description, and price.
• People can purchase many objects and an object can be purchased by many people.
• Objects must either be a factory part object or a building. However, they cannot be both.
• Factory part objects have a barcode to look up. Buildings have a blueprint and whether they need changes.
• Buildings can also be houses. Houses have the style of the house. Buildings must be sold by at least one realtor.
• Realtors has a unique name and an address. A realtor can sell many different houses.