In human experimentation, for example, researchers cannot pay volunteers so much that the poor could be exploited.
Human researchers can not pay over a certain amount or the poor could be exploited.
Human researchers can pay as much as they want.
Small boy is eating a popsicle.
There are multiple vehicles outside.
It was over.
He watched the riders from afar.
All of the old houses have been turned into museums.
A man is playing golf.