What parts are there in an academic dress? Extract them and place them in a numbered list.

Academic dress is a traditional form of clothing for academic settings, mainly tertiary (and sometimes secondary) education, worn mainly by those who have obtained a university degree (or similar), or hold a status that entitles them to assume them (e.g., undergraduate students at certain old universities).[1] It is also known as academical dress,[2] academicals, and, in the United States, as academic regalia.

Contemporarily, it is commonly seen only at graduation ceremonies, but formerly academic dress was, and to a lesser degree in many ancient universities still is, worn daily. Today, the ensembles are distinctive in some way to each institution, and generally consist of a gown (also known as a robe) with a separate hood, and usually a cap (generally either a square academic cap, a tam, or a bonnet). Academic dress is also worn by members of certain learned societies and institutions as official dress.[3][4]

1. Gown
2. Hood
3. Cap