1.   Most of the timbered houses had windows patched with rags, but the one Maggie entered was slightly cleaner.

2.   The graphics in Duke are cleaner, but they have a cartoon-like feel to them.

3.   Nuclear power is cleaner than coal.

4.   On the south side of the structure the concrete was cleaner than to the north, where it was discoloured with moss.

5.   Coke is cleaner, they say, more subtle, less demanding.

6.   Already, though, there are signs that the Pigeon is cleaner.

7.   And it comes at a time when studies of other pollutants have shown the river to be cleaner than it has been in decades.

8.   And the air is cleaner, the water is cleaner, the food supply is safer, there are fewer toxic waste dumps.

9.   And the new Vespas are far cleaner than the old ones.