What happens is, within that single atom, these two orbitals can combine in such a way to produce something that we know as hybridized orbitals. In other words, we have a single atom. Within that single atom, an S orbital interacts with a p orbital to produce two hybridized orbitals. Now, once again, we input two orbitals. So we should get back to hybridized orbitals. And that's exactly what we see happen here.