- Wheels are a part of roller skates
- A roller skate is a kind of vehicle
- Hence, a roller skate is a kind of vehicle with wheels

- A roller skate is a kind of vehicle with wheels
- A wheeled vehicle is a kind of vehicle with wheels
- So, a roller skate is a kind of wheeled vehicle

- A roller skate is a kind of wheeled vehicle
- A wheeled vehicle requires smooth surfaces
- Therefore, a roller skate requires smooth surfaces

- Blacktop is made of asphalt concrete
- Asphalt has a smooth surface
- Hence, a blacktop has a smooth surface

- A roller skate requires smooth surfaces
- A blacktop has a smooth surface
- So, a roller skate can be used on a blacktop surface

Therefore, a roller skate can be used on a blacktop surface
Question: Fourth graders are planning a roller-skate race. Which surface would be the best for this race?
Context: - Wheels are a part of roller skates 
- Blacktop is made of asphalt concrete 
- A wheeled vehicle requires smooth surfaces 
- A wheeled vehicle is a kind of vehicle with wheels 
- A roller skate is a kind of vehicle 
- Asphalt has a smooth surface