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1. Niagara falls is a great waterfall which is in North America.

2. Jorn Utzon is the architect who designed the Sydney Opera House.

3. Football is a sport which many people in Saudi Arabia play.

4. A national park is an area of land where people can go and enjoy nature.

5. The Empire State Building is a famous landmark which stands out in New York City.

6. A doctor is someone who people see when they are ill.