premise: A girl in a black shirt looks at the camera while eating an apple and another smiles while looking downward. hypothesis: 2 females are looking at a camera.  One has an apple in her hand and the other has her head tilted towards the floor.
entailment: A girl and another is a form of two females.  To eat an apple implies that the apple is in the hand.  Looking downward is a form of tilting a head towards the floor, which is down.