For some, information is knowledge about a subject, something one can use to improve the performance of other activities—it does not include arts and entertainments. For others, information is something that is mentally processed and consumed, either to improve other activities (such as production) or for personal enjoyment; it would include artists and architects. For yet others, information may include anything that has to do with sensation, and therefore information industries may include even such things as restaurant, amusement parks, and prostitution to the extent that food, park ride, and sexual intercourse have to do with senses.