Roast pork with boiled sweet and sour beetroot.

Pork with boiled sweet and sour beetroot.
Ingredients:
2 cloves of garlic
1 large onion
400 milliliters of water
pork
salt
grinded pepper
whole cumin
Beetroot:
1 onion
900 grams of beetroot
oil
200 milliliters of water
1 teaspoon of salt
1/2 teaspoon whole cumin
2 - 4 tablespoons of vinegar 8%
1 spoon of sugar