他母亲生他的时候只有１９岁所以只要他母亲在１４岁１９岁之间在美国国外停留过就不满足第二条 at least 5 years of 10 years should be spent after 14th birthday.

If Obama had really beenborn outside USA, it must mean
his mother would be outside USA too. If days were
accurately counted, 5 years of residence in USA
might not be satisfied