In a bowl pour lemon juice over chicken. In a mortal mashed oregano, black pepper, chicken cube and garlic. Scrub chicken with garlic mix and let marinate for 30 minutes. In a pot or frying pan heat the oil on med. flame wait for the oil to get hot and pour the sugar, let the sugar brown (do not let it burn). Pour the chicken with out the marinate juice (save for later) and sautee until golden brown. add 2 tablespoons of water cover and simmer for 12 minutes adjusting water when necessary. When the liquid has almost dissolved pour the marinade juice, onions, cilantro, pepper, olives and coriander leaves, tomato paste and 1/2 cup of water. Add salt to taste. Cover and simmer to produce a light thick sauce.