Prerequisites needed to fulfill steps in article.

Proficiency needed for this content; expected values: 'Beginner', 'Expert'.

An alias for the item.

The unique identifier for the ticket.

Reference to an asset (e.g., Barcode, QR code image or PDF) usable for entrance.

The platform where the train arrives.

The platform from which the train departs.

The name of the train (e.g. The Orient Express).

The unique identifier for the train.

Defines the type of a price specified for an offered product, for example a list price, a (temporary) sale price or a manufacturer suggested retail price. If multiple prices are specified for an offer the [priceType](https://schema.org/priceType) property can be used to identify the type of each such specified price. The value of priceType can be specified as a value from enumeration PriceTypeEnumeration or, a UN/EDIFACT 5387 code, or as a free form text string for price types that are not already predefined in PriceTypeEnumeration.

The text of the UserComment.

The drive wheel configuration, i.e. which roadwheels will receive torque from the vehicle's engine via the drivetrain.

A textual description of known damages, both repaired and unrepaired.

The number or type of airbags in the vehicle.

A short text indicating the configuration of the vehicle, e.g. '5dr hatchback ST 2.5 MT 225 hp' or 'limited edition'.

The Vehicle Identification Number (VIN) is a unique serial number used by the automotive industry to identify individual motor vehicles.

The color or color combination of the interior of the vehicle.

The type or material of the interior of the vehicle (e.g. synthetic fabric, leather, wood, etc.). While most interior types are characterized by the material used, an interior type can also be based on vehicle usage or target audience.

The type of component used for transmitting the power from a rotating power source to the wheels or other relevant component(s) ("gearbox" for cars).

The electronic systems used to play [video games](http://en.wikipedia.org/wiki/Category:Video_game_platforms).

The frame size of the video.

The quality of the video.

The number of copies when multiple copies of a piece of artwork are produced - e.g. for a limited edition of 20 prints, 'artEdition' refers to the total number of copies (in this example "20").

The material used. (E.g. Oil, Watercolour, Acrylic, Linoprint, Marble, Cyanotype, Digital, Lithograph, DryPoint, Intaglio, Pastel, Woodcut, Pencil, Mixed Media, etc.)