I would consider it a mood because it can change over time.
EX: You can be enthusiastic one moment, then sad the next.
1. An article in a news magazine titled " Fences wont stop illegal immigration"
Purpose: to persuade
2. "The iPhone versus the Android ; Which one is best ?'' - an article in a computer magazine
Purpose: to evaluate
3. An article in a newspaper titled " Entire city Installs solar panels on its Homes"
purpose: to inform
4. "Current trends : The Decline of Marriage '' - an article in a popular science magazine
purpose: to analize
They are a certain kind of shoes.
Need more information on this specific question please