This is a conceptual entity that holds together all aspects of the quaternary relation includesTypeOfGood, namely the Quantity, the Unit of Measurement, the Product or Service, and the Offering to which this belongs. Note: The link between Offering and TypeAndQuantityNode is represented by the object property includesObject. The Unit of Measurement is attached using the hasUnitOfMeasurement datatype property. The quantity is specified using the datatype property amountOfThisGood (float). The specification of the item included is represented by the object property typeOfGood. Example: An offering may consist of 100g Butter and 1 kg of potatoes, or 1 cell phone and 2 headsets.