One of the domain specialities to which this web page's content applies.

One of the more significant URLs on the page. Typically, these are the non-navigation links that are clicked on the most.

People or organizations that have reviewed the content on this web page for accuracy and/or completeness.

A link related to this web page, for example to other related web pages.

Indicates the main image on the page.

Indicates if this web page element is the main subject of the page.

Date on which the content on this web page was last reviewed for accuracy and/or completeness.

A set of links that can help a user understand and navigate a website hierarchy.

Specifies browser requirements in human-readable text. For example, 'requires HTML5 support'.

The scope of the warranty promise.

The duration of the warranty promise. Common unitCode values are ANN for year, MON for months, or DAY for days.

A sub property of object. The candidate subject of this action.

The supporting materials for the artwork, e.g. Canvas, Paper, Wood, Board, etc.

e.g. Painting, Drawing, Sculpture, Print, Photograph, Assemblage, Collage, etc.

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

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 quality of the video.

The frame size of the video.

Indicates whether this game is multi-player, co-op or single-player. The game can be marked as multi-player, co-op and single-player at the same time.

Links to tips, tactics, etc.

The server on which it is possible to play the game.

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

Cheat codes to the game.

The anatomical or organ system that the vein flows into; a larger structure that the vein connects to.