A man lectures a roomful of people using a You Tube video on a projector screen.
A man is speaking in front of people.
Is the premise "A man lectures a roomful of people using a You Tube video on a projector screen." true if "A man is speaking in front of people."?

Options: 

 - yes

 - it is not possible to tell

 - no
yes
Is the premise "A man lectures a roomful of people using a You Tube video on a projector screen." true if "A man is speaking in front of people."?

Options: 

 - yes

 - it is not possible to tell

 - no
user
yes
assistant