People riding mopeds down the street.
There are people on the street.
People are riding mopeds in the park.
A person is eating.
"Sounds like no Problem" Anse unrolled his bedroll
Verna can you please remove this person from my office.
A crowd of people have gathered in front of the stables.
The car is new
Delineating those types is to deemphasize that all dimensions should be considered.