Compare the following files:

1. Hemingway.txt. Just text, saved as .txt file. (Compare to the html file hemingway.html)
2. Hemingway.html. Exact same file as above, but saved with .html extension instead of .txt
3. Hemingway2.html. Same file as above, but with basic structural html added.
4. Hemingway3.html. Same as hemingway2.html, but with basic internal style sheet added.
5. Hemingway4.html. Same as hemingway3.html, but with slightly more complex style sheet and an image added.
6. Hemingway5.html. Same as hemingway4.html, but with different style sheet.