CLEAN : Thousands of Ethiopians march in rally over IS killings

The video discusses the concept of what is known and follows with a segment expressing disagreement or rejection of certain ideas.

What does the speaker initially ask about?

• A recent event

• Something ever known

• A future prediction

• A new discovery

How does the speaker respond to their own question?

• With a question

• With a negative response

• With a positive affirmation

• With uncertainty