I don't interpret this the same way DoninGA has:
4) Dependent test - You must claim the child as a dependent on your tax return. Bear in mind that in order for you to claim a child as a dependent, he or she must:
- be your child (or adoptive or foster child), sibling, niece, nephew or grandchild;
- be under age 19, or under age 24 and a full-time student for at least five months of the year; or be permanently disabled, regardless of age;
- have lived with you for more than half the year; and
- have provided no more than half his or her own support for the year.
