premise: Little girl in a bathtub with a huge smile and her wet hair sticking straight up like Alfalfa's hair in the old TV show "The Little Rascals.". hypothesis: The girl is inside taking a bath with her hair sticking up like Alfalfa's hair.
entailment: Little girl in a bathtub with a huge smile and her wet hair sticking straight is a rephrasing of  The girl is inside taking a bath with her hair sticking up.