A substantial body of published scientific literature recognizes a correlation between elevated PM concentrations and increased mortality rates.
There is a correlation between elevated PM concentrations and increased mortality rates.
There is no evidence that there is a correlation between elevated PM concentrations and increased mortality rates.
The girl is playing Frisbee with the dog in the park.
A woman is giving a speech.
No one is standing outside.
The joint venture hasn't started yet.
Renoir, van Gogh, and Gaugin once lived and worked just south of rue de l'Abreuvoir.
Humans on exercise equipment.