People gathered to watch someone play the flute.
People watch the person play flute.
A tubist plays in a symphony.
There are three grown men at the beach.
The delivery function doesn't vary at all.
That might be a small problem.
The office is so slow that the lawyers are able to take phone calls at all hours without interrupting their work.
A man in a blue robe, along with three other men who live in a third world country, are washing their clothes in a muddy pit.
A person in gray is walking.