Mix everything in a salad bowl. If desired, add pepper. Prepare a dressing of vinegar (you can take lemon juice, citric acid), water, salt, sugar and vegetable oil. Pour the salad, let it brew, put it on a slide, decorate with a lettuce leaf, any greens (I have cilantro), olives.
To clarify, I took half a teaspoon of acetic acid (70%) and 50 ml of water for refueling.