Here is my first section. I have no columns!

This section has two columns. This section has two columns. This section has two columns. This section has two columns. This section has two columns. This section has two columns. This section has two columns. This section has two columns. This section has two columns. This section has two columns. This section has two columns. This section has two columns. This section has two columns. This section has two columns. This section has two columns. This section has two columns. Final text.
Here begins the second column. Here begins the second column. Here begins the second column. Here begins the second column. Here begins the second column. Here begins the second column. Final column 2.

And now section 3. Back to no columns. And now section 3. Back to no columns. And now section 3. Back to no columns.