Any branch of a field in which people typically develop specific expertise, usually after significant study, time, and effort.
Usage: Between 100 and 1000 domains
|Properties from Enumeration|
Class or |
|Relates a term (i.e. a property, class or enumeration) to one that supersedes it.|
|Properties from Thing|
||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.|
||Text||An alias for the item.|
||Text||A short description of the item.|
URL or |
|An image of the item. This can be a URL or a fully described ImageObject.|
CreativeWork or |
|Indicates a page (or other CreativeWork) for which this thing is the main entity being described.
See background notes for details.
Inverse property: mainEntity.
||Text||The name of the item.|
||Action||Indicates a potential Action, which describes an idealized action in which this thing would play an 'object' role.|
||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 of the item.|
Instances of Specialty may appear as values for the following properties
||WebPage||One of the domain specialities to which this web page's content applies.|
More specific Types
Schema Version 2.1