Written language (especially English!) is entirely too flexible for a mere computer to figure out. See such (t)witticisms as "Ode to a Spell Checker" for one way to completely balls-up an AI-bot that most readers of ThePress wouldn't even realize was an issue. There are many more.
But as long as we don't deviate from the training dataset, these jokers will be able to spend the grant money, having played the game as it was written ...
I'm curious as to amfM's take on the subject ;-)