Schema.org Vocabulary › Property: itemOffered
https://schema.org/itemOffered
An item being offered (or demanded). The transactional nature of the offer or demand is documented using [[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.
Range: AggregateOffer, CreativeWork, Event, MenuItem, Product, Service, Trip