A developer received the following three rules in the specification for a new Web site.
• If a Web page contains the word "painting", then it also contains either "acrylic" or "oil".
• Whenever a Web page in the new Web site contains the word "watercolor", it does not also contain the word "painting".
• All Web pages within the Web site contain the word "Museum".
Write a formula expressing these rules. It should be a series of logical conditions that is equivalent to the rules. (The formula will contain the five terms: "painting", "acrylic", et cetera.)