object

Matches the ID number of the object.

class

Matches the ID number of the class which the object is an instance of.

class_identifier

Matches the identifier of the class which the object is an instance of.

class_group

Matches the ID number of the group that the class which the object is an instance of belongs to.

section

Matches the number of the section which the object belongs to.

node

Matches the ID number of the node.

parent_node

Matches the ID number of the parent node.

depth

Matches the depth of the node. The depth of a top level node is 1.

url_alias

Matches the virtual URL of the node.