If the conditions in the "If" tab are respected, then the conditions in the "Then" tab should be respected. Otherwise, the conditions in the "Else" tab should be respected.
"United States of America"
[0-9]{5}(-[0-9]{4})?
If the conditions in the "If" tab are respected, then the conditions in the "Then" tab should be respected. Otherwise, the conditions in the "Else" tab should be respected.
"Canada"
[A-Z][0-9][A-Z] [0-9][A-Z][0-9]
If the conditions in the "If" tab are respected, then the conditions in the "Then" tab should be respected. Otherwise, the conditions in the "Else" tab should be respected.
"Netherlands"
[0-9]{4} [A-Z]{2}