A pointer to another product (or multiple products) for which this product is an accessory or spare part.

A resource from which this work is derived or from which it is a modification or adaption.

A resource that was used in the creation of this resource. This term can be repeated for multiple sources. For example, http://example.com/great-multiplication-intro.html.

A pointer to another product (or multiple products) for which this product is a consumable.

A pointer to another, somehow related product (or multiple products).

A pointer to another, functionally similar product (or multiple products).

An item being offered (or demanded). The transactional nature of the offer or demand is documented using [businessFunction](http://schema.org/businessFunction), e.g. sell, lease etc. While several common expected types are listed explicitly in this definition, others can be used. Using a second type, such as Product or a subtype of Product, can clarify the nature of the offer.

Item(s) being shipped.

A material that something is made from, e.g. leather, wool, cotton, paper.

The item ordered.

Products owned by the organization or person.

The product or service this support contact point is related to (such as product support for a particular product line). This can be a specific product or product line (e.g. "iPhone") or a general category of products or services (e.g. "smartphones").

The product that this structured value is referring to.