Spanish Chilled Tomato Soup

Name: Spanish Chilled Tomato Soup
Cuisine: European, Mediterranean, Spanish
Ingredients: 6 large ripe tomatoes, cored and chopped; 1 cucumber, peeled, seeded, and chopped; 1 green bell pepper, seeded and chopped; 1 small red onion, peeled and chopped; 2 cloves garlic, minced; 3 cups cold water; 1/4 cup extra-virgin olive oil; 2 tbsp red wine vinegar; Salt and black pepper to taste; Fresh basil or parsley for garnish (optional)