@CHOWN (thing|#nnn) = (ME|[*]player|[+]group)

Changes the ownership of <object> to <player/group>.

Players may chown 'unwanted' objects they can 'use' to themselves.
(i.e., If a player @locks a gift to a friend and then sets it unwanted,
the recipient can later @chown it to him/her/itself.)

@CHOWNing a <thing> to a <group> will give the members of the <group>
control over the <thing>.  <group> must be set LINK_OK if not owned
by the player performing the @CHOWN.

Players can't be chowned; they always own themselves.

See also: control, link_ok, owner-group, unwanted