Limestone was used as an estimate of reagent for FGD systems.
Limestone was used for estimating reagent of FGD systems.
Limestone was never used.
A girl chases ducks around the pond.
These are not the pants.
A boy doesn't have shaving cream on his face
Once you reach the end of Ben Yehuda Street take a left.
The man is taking nap.
Yadda yadda yadda has a definitive meaning to all.