[FIG(quote)[
[FIGCAPTION[
[1] [CITE@en[Web Annotation Data Model]]
([TIME[2017-02-24 02:14:26 +09:00]])
<https://w3c.github.io/web-annotation/model/wd2/#dfn-instance>
]FIGCAPTION]

> 
:Instance:An element of a group of Resources represented by a particular Class.

]FIG]


[FIG(quote)[
[FIGCAPTION[
[2] [CITE@en[Selectors and States]]
([TIME[2017-02-24 02:14:26 +09:00]])
<https://w3c.github.io/web-annotation/selector-note/#dfn-instance>
]FIGCAPTION]

> 
:Instance:An element of a group of Resources represented by a particular Class.

]FIG]