3. The blue car is not as beautiful as white car.
4. The white car is as beautiful as black car.
5. Ken is as tall as Roy.
6. Bob is not as tall as Ken.
7. The green pencil is as long as red pencil.
8. The yellow pencil is not as long as green pencil.
9. Charles is as old as Don.
10. Charles is not as old as Peter.
11. Tom is as strong as Sam.
12. Dan is not as strong as Tom.