Grammar review
This exercise focuses on one tricky pattern: a word like city, president, south, or lake is only capitalized when it's actually part of a specific proper name, not when it's used generically.
New York City (part of the name) vs. the city of Kalamazoo (generic) President Obama (title + name) vs. talking to the president (generic) from the South (a specific region) vs. go south for three blocks (a direction)