A boy is attempting to climb an iron fence .
There is a very good chance that a curious boy is trying to escape from the confines of his school 's playground .
There is little chance that a curious boy is trying to escape from the confines of his school 's playground .
There is a very good chance that a curious boy is trying to escape from the confines of his school 's playground .
A curious boy is trying to escape from the confines of his school 's playground .