There's a little problem I sometimes run into with line breaks. Mainly, it's sometimes impossible to tell if there is a line break or if the text just happened to naturally wrap and continue in the next line.
For example, in the following image, it's impossible to say whether there is a line break between "is" and "radically", because the sentence would wrap and continue on the next line either way. There are quite a few of these in there.
What I would suggest is to add some kind of a marker in every line break on all 4 text boxes. Kind of like the hidden formatting symbols in MS Office Word that you can turn on/off. Except only for the line break, of course, not those other things that Word has.
It would be display only, the user wouldn't have to add any special marks in there.