| Property | On Types | description |
|---|---|---|
| about | The subject matter of the content. | |
| actionOption | A sub property of object. The options subject to this action. | |
| category | A category for the item. Greater signs or slashes can be used to informally indicate a category hierarchy. | |
| characterAttribute | A piece of data that represents a particular aspect of a fictional character (skill, power, character points, advantage, disadvantage). | |
| collection | A sub property of object. The collection target of the action. | |
| dataFeedElement | An item within a data feed. Data feeds may have many elements. | |
| defaultValue | The default value of the input. For properties that expect a literal, the default is a literal value, for properties that expect an object, it's an ID reference to one of the current values. | |
| error | For failed actions, more information on the cause of the failure. | |
| gameItem | An item is an object within the game world that can be collected by a player or, occasionally, a non-player character. | |
| gamePlatform | The electronic systems used to play video games. | |
| instrument | The object that helped the agent perform the action. E.g. John wrote a book with a pen. | |
| item | An entity represented by an entry in a list or data feed (e.g. an 'artist' in a list of 'artists'). | |
| itemListElement | For itemListElement values, you can use simple strings (e.g. "Peter", "Paul", "Mary"), existing entities, or use ListItem.\n\nText values are best if the elements in the list are plain strings. Existing entities are best for a simple, unordered list of existing things in your data. ListItem is used with ordered lists when you want to provide additional context about the element in that list or when the same item might be in different places in different lists.\n\nNote: The order of elements in your mark-up is not sufficient for indicating the order or elements. Use ListItem with a 'position' property in such cases. | |
| itemReviewed | The item that is being reviewed/rated. | |
| knowsAbout | Of a Person, and less typically of an Organization, to indicate a topic that is known about - suggesting possible expertise but not implying it. We do not distinguish skill levels here, or relate this to educational content, events, objectives or JobPosting descriptions. | |
| mainEntity | Indicates the primary entity described in some page or other CreativeWork. | |
| mentions | Indicates that the CreativeWork contains a reference to, but is not necessarily about a concept. | |
| object | The object upon which the action is carried out, whose state is kept intact or changed. Also known as the semantic roles patient, affected or undergoer (which change their state) or theme (which doesn't). E.g. John read a book. | |
| option | A sub property of object. The options subject to this action. | |
| produces | The tangible thing generated by the service, e.g. a passport, permit, etc. | |
| quest | The task that a player-controlled character, or group of characters may complete in order to gain a reward. | |
| replacee | A sub property of object. The object that is being replaced. | |
| replacer | A sub property of object. The object that replaces. | |
| requiredCollateral | Assets required to secure loan or credit repayments. It may take form of third party pledge, goods, financial instruments (cash, securities, etc.) | |
| reservationFor | The thing -- flight, event, restaurant, etc. being reserved. | |
| result | The result produced in the action. E.g. John wrote a book. | |
| serviceOutput | The tangible thing generated by the service, e.g. a passport, permit, etc. | |
| targetCollection | A sub property of object. The collection target of the action. |
| Property | Expected Type | description |
|---|---|---|
| additionalType | URL | An additional type for the item, typically used for adding more specific types from external vocabularies in microdata syntax. This is a relationship between something and a class that the thing is in. In RDFa syntax, it is better to use the native RDFa syntax - the 'typeof' attribute - for multiple types. Schema.org tools may have only weaker understanding of extra types, in particular those defined externally. |
| alternateName | Text | An alias for the item. |
| description | Text | A description of the item. |
| disambiguatingDescription | Text | A sub property of description. A short description of the item used to disambiguate from other, similar items. Information from other properties (in particular, name) may be necessary for the description to be useful for disambiguation. |
| identifier | The identifier property represents any kind of identifier for any kind of Thing, such as ISBNs, GTIN codes, UUIDs etc. | |
| image | URL ImageObject | An image of the item. This can be a URL or a fully described ImageObject. |
| instanceOf | Type to which this subject belongs. Use for membership in a value set (Enumeration), not inheritance. Example: K2 instanceOf mountain; volcano subClassOf mountain. | |
| mainEntityOfPage | URL CreativeWork | Indicates a page (or other CreativeWork) for which this thing is the main entity being described. See background notes for details. |
| name | Text | The name of the item. |
| potentialAction | Indicates a potential Action, which describes an idealized action in which this thing would play an 'object' role. | |
| sameAs | URL | 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. |
| subjectOf | A CreativeWork or Event about this Thing. | |
| url | URL | URL of the item. |