A developer received the following three rules in specification for a new Web site.
a) If a Web page consists of the word “painting”, then it also consists of either “acrylic” or “oil”.
b) Whenever a Web page in new Web site consists of the word “watercolor”, it does not also consist of the word “painting”.
c) All the Web pages in the Web site consist of the word “Museum”.
Write down a formula describing these rules. It must be a series of logical conditions which is equivalent to the rules.