context: Two people kiss on a street blindly-lit in bright white sun while several silhouetted pedestrians walk behind them.
hypothesis: It is impossible that a woman kisses a man in the street after he asks her to marry him.
valid_hypothesis: It is impossible that a woman kisses a man in the street after he asks her to marry him.
invalid_hypothesis: It is probably the case that a woman kisses a man in the street after he asks her to marry him.
hypothesis_assertion: A woman kisses a man in the street after he asks her to marry him.