UK: Boris Johnson PM visits HMP Belmarsh.

The video tutorial begins with a brief introduction, setting the stage for movement preparation. The instructor encourages readiness and sets a positive tone for the upcoming activity.

What is the main focus of the initial part of the video?

• Discussing the benefits of exercise

• Preparing to start moving

• Explaining a complex theory

• Describing a historical event

What does the speaker imply by saying 'Yeah'?

• Disagreement with the previous statement

• Uncertainty about the next steps

• Agreement to proceed

• A question about the next topic