Four young children dressed formally pose for a potrait with the two boys standing in front and the two girls smiling in the back .
There is a better than even chance that four children patiently pose for a portrait because they were promised ice cream .
There is a better than even chance that four children patiently pose for a portrait because they were promised ice cream .
It is impossible that four children patiently pose for a portrait because they were promised ice cream .
Four children patiently pose for a portrait because they were promised ice cream .