table(table table-bordered table-condensed).
|_. Attribute|_. Type|_. Description|
|tail_uuid|string|Object UUID at the tail (start, source, origin) of this link|
-|tail_kind|string|Object kind at the tail (start, source, origin) of this link|
|link_class|string|Class (see below)|
|name|string|Link type (see below)|
|head_uuid|string|Object UUID at the head (end, destination, target) of this link|
-|head_kind|string|Object kind at the head (end, destination, target) of this link|
|properties{}|list|Additional information, expressed as a key→value hash. Key: string. Value: string, number, array, or hash.|
h2. Link classes