The text of the UserComment.

A sub property of object. The collection target of the action.

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.

This property specifies the minimal quantity and rounding increment that will be the basis for the billing. The unit of measurement is specified by the unitCode property.

The quantity of the goods included in the offer.

The unique identifier for the train.

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

The station from which the train departs.

The platform from which the train departs.

The station where the train trip ends.

The platform where the train arrives.

The seat associated with the ticket.

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

The unique identifier for the ticket.

The date the ticket was issued.

URL of a reference Web page that unambiguously indicates the item's identity. E.g. the URL of the item's Wikipedia page, Wikidata entry, or official website.

Indicates a potential Action, which describes an idealized action in which this thing would play an 'object' role.

Indicates a page (or other CreativeWork) for which this thing is the main entity being described. See [background notes](https://schema.org/docs/datamodel.html#mainEntityBackground) for details.

An alias for the item.

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

Prerequisites needed to fulfill steps in article.

The significance associated with the superficial anatomy; as an example, how characteristics of the superficial anatomy can suggest underlying medical conditions or courses of treatment.

Anatomical systems or structures that relate to the superficial anatomy.

A person that acts in a coaching role for a sports team.