Two Asians engage in a staring contest while they wait for the train.
People staring.
Two black boys have a staring contest while waiting for the train
The gum mastic is very much valued for its medicinal use.
Regulations have been drafted to reduce emissions.
Theories apply in all circumstances.
There is a bus.
The woman is hitting the bikes with a sledgehammer, trying to break the bikes.
The man is riding a bike.