Here are four sentences describing the differences between photo A and photo B:
1. In photo A, a boy is cooking sausages, but in photo B, a man is feeding a child.
2. In photo A, a couple is sitting on a picnic blanket, but in photo B, two elderly women are sitting on a picnic blanket.
3. In photo A, there are trees, but in photo B, there is a bench.
4. In photo A, the sausages are being cooked, but in photo B, there are no sausages.