There are two Lanas. The first Lana is (probably) 43yo, and her child is 1yo. But they could (in theory) be 55 and 2, 67 and 3, 79 and 4, 91 and 5, 103 and 6

There are two Lanas. The first Lana is (probably) 43yo, and her child is 1yo. But they could (in theory) be 55 and 2, 67 and 3, 79 and 4, 91 and 5, 103 and 6 or 115 and 7. The second Lana is 22. Oh, wait... the task was to find the baby. Hey, what's a good regex for matching open tags except XHTML self-contained tags?