In the frontal lobe, we've got the primary motor cortex. We've also got another area called Brockers area. That would be like an association area, but this is full speech. So you have to coordinate your breathing whilst coordinating all the muscles to not only move the vocal cords, but to shape the sounds as the speech production. And if you were to have an injury there, then you would be able to technically understand the words, but you wouldn't be able to coordinate the eyes to read well.