The video covers the transition of guests from the Grand Hall to another hall, introduces the Special Administrative Region government, and details the swearing-in ceremony of officers and officials. It concludes with the formation of the Legislative Council from the Provisional Legislature.

Describe the atmosphere of the event based on the text.

What is happening in the Grand Hall?

Who is being welcomed in the event?

What is the significance of the swearing in of the officers and senior officials?

What will the Provisional Legislature soon become?