People in the background watch a man.    This is not the man without a helmet in the car while no one watches.  People in the background watch a man wearing a helmet on a  bicycle.


Context: "A man wearing a helmet is on a bicycle in the air while people in the background watch him."
Hypothesis: There is a man without a helmet in a car while no one watches.
Based on the context, is the hypothesis true, false, or unknown?