premise: A woman holds a baby on her lap and holds the hand of another young child who is riding on a horse-shaped tire swing. hypothesis: A woman and two children are together and one of the children is on a swing.
entailment: If there is a baby and another child, that is two children. If she has one in her lap and is holding the other's hand, they are together. Riding on a swing is another way to say on a swing.