Children in a classroom are lined up with their hands on each other's backs, forming a train.
Some children are forming a train.
The children are on a school trip at the aquarium.
There is no difference between the two.
People have a barbeque.
The zoological gardens was shut down.
A man is not clean
A group of people are playing music.
There is only one type of stone on the approach to the Jaffa Gate.