Additionally, we have not quantified a number of known or suspected health effects linked with PM and ozone for which appropriate concentration-response functions are not available or which do not provide easily interpretable outcomes (i.e.
The outcomes aren't easy to interpret.
It's easy to interpret all the data.
Two men are working at a booth.
Tuppence pointed out her partner.
A cute little brown dog with a curly tail stands in the shade
Within these rules, the Postal Service would operate as a charity.
A dog playing outside.
A lady is painting.