Each language has its strengths and weaknesses. The primary purpose of a schema language is to specify what the structure of an XML document can be. This means which elements can reside in which other elements, which attributes are and are not legal to have on a particular element, and so forth.
Choose healthier beverages most of the time. Have a glass of ice water with fresh lemon or lime juice, or pour a glass of sparkling water and add an ounce or two of 100 percent fruit juice. Even a glass of low-fat chocolate milk has less sugar than a soda, and it supplies protein, calcium and vitamin D.
Which is better for you: soda or milk? You might be able to guess the answer, but do you know why? Milk and soda are made up of different kinds of sugar. Robert Lustig, who is a professor of pediatric endocrinology at the University of California at San Francisco, explains the different types of sugar and which ones are better than others. Learn more in Lustig's books The Hacking of the American Mind and Fat Chance..