uh i don't know there's a lot of air pollution
The air is quite polluted.
The air is not polluted.
A girl is playing in a fountain.,
Both Time and Newsweek profiled Bush.
Implementation of available technologies will change the requirement.
We were lucky not to have wrecked the car.
The word transubstantiation is commonly used in the Roman Catholic Church.
What does that say about your aura?