premise: a group of people, some with white helmets and diving gear, and some in life preservers, carrying a gurney with a person on it. hypothesis: The person was rescued from the water and is being carried away.
entailment: People with diving gear in life preservers carrying a gurney with a person implies that a person was rescued from the water.  Person being carried away is a rephrasing of people carrying a gurney with a person on it.