premise: The girl in pink smiles as she rides on a black swing. hypothesis: The girl is smiling at a handsome guy.
neutral: Just because the girl is smiling, does not mean she is smiling at anyone in particular, much less a handsome guy. She could be smiling because she is swinging, she could be smiling because it is a nice day, she could be smiling because she naturally smiles when she is not thinking of anything.