In a skillet over medium heat, saute garlic in oil until lightly browned. Add onion and tomato slices and cook for 2 minutes. Add pork and soy sauce. Simmer for about 15 minutes or until pork is tender. Add shrimps, long beans, shrimp juice, a little salt and pepper, and let cook for another 10-15 minutes or until long beans are tender. Correct seasoning to taste. Transfer to a serving container and serve immediately. Serves 4-5 Note: Green beans can be used in palce of the long beans in this recipe.