Thing

Thing

Property	Expected Type	Description
Properties from Thing
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 short description of the item.
image	URL  or ImageObject	An image of the item. This can be a URL or a fully described ImageObject.
mainEntityOfPage	URL  or CreativeWork	Indicates a page (or other CreativeWork) for which this thing is the main entity being described. See background notes for details. Inverse property: mainEntity.
name	Text	The name of the item.
potentialAction	Action	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, Freebase page, or official website.
url	URL	URL of the item.

Instances of Thing may appear as values for the following properties

Property	On Types	Description
about	CommunicateAction  or CreativeWork	The subject matter of the content.
actionOption	ChooseAction	A sub property of object. The options subject to this action. Supersedes option.
category	Product  or Service  or Invoice  or PhysicalActivity  or Offer	A category for the item. Greater signs or slashes can be used to informally indicate a category hierarchy.
characterAttribute	Game  or VideoGameSeries	A piece of data that represents a particular aspect of a fictional character (skill, power, character points, advantage, disadvantage).
dataFeedElement	DataFeed	An item within in a data feed. Data feeds may have many elements.
defaultValue	PropertyValueSpecification	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	Action	For failed actions, more information on the cause of the failure.
gameItem	Game  or VideoGameSeries	An item is an object within the game world that can be collected by a player or, occasionally, a non-player character.
gamePlatform	VideoGameSeries  or VideoGame	The electronic systems used to play video games.
instrument	Action	The object that helped the agent perform the action. e.g. John wrote a book with *a pen*.
item	ListItem  or DataFeedItem	An entity represented by an entry in a list or data feed (e.g. an 'artist' in a list of 'artists')’.
itemListElement	ItemList	For itemListElement values, you can use simple strings (e.g. "Peter", "Paul", "Mary"), existing entities, or use ListItem. Text 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. Note: 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	AggregateRating  or Review	The item that is being reviewed/rated.
mainEntity	CreativeWork	Indicates the primary entity described in some page or other CreativeWork. inverse property: mainEntityOfPage.
mentions	CreativeWork	Indicates that the CreativeWork contains a reference to, but is not necessarily about a concept.
object	Action	The object upon 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*.
purpose	MedicalDevice  or PayAction  or AllocateAction	A goal towards an action is taken. Can be concrete or abstract.
quest	Game  or VideoGameSeries	The task that a player-controlled character, or group of characters may complete in order to gain a reward.
replacee	ReplaceAction	A sub property of object. The object that is being replaced.
replacer	ReplaceAction	A sub property of object. The object that replaces.
reservationFor	Reservation	The thing -- flight, event, restaurant,etc. being reserved.
result	Action	The result produced in the action. e.g. John wrote *a book*.
serviceOutput	Service	The tangible thing generated by the service, e.g. a passport, permit, etc. Supersedes produces.
targetCollection	UpdateAction	A sub property of object. The collection target of the action. Supersedes collection.

More specific Types

• Action
• CreativeWork
• Event
• Intangible
• MedicalEntity
• Organization
• Person
• Place
• Product

Schema Version 2.2