In a large saucepan, combine broth, the water, lentils, and minced garlic. Bring to boiling; reduce heat. Cover and simmer for 20 minutes. Add carrots, parsnips, and onions. Return to boiling; reduce heat. Cover and simmer for 10 to 15 minutes more or just until vegetables and lentils are tender. Stir in chard; remove from heat. Stir in undrained tomatoes, tomato paste, and the 2 tablespoons fresh basil or 2 teaspoons dried basil.