How to write a solid paragraph using a practical formula

Students will learn to write a structured paragraph similar in form to this sample: (topic sentence) Harry Potter will not last much longer. (support a) Although Harry is a fictional character, even he must die. (support b) Harry portrays a real, little boy, and real, little boys die. (interpret supporting details) The only way Harry could live on is if he were a fictional character in a fantasy novel. If this were so, Harry could live forever.