AI plays 'Mad Libs' to learn grammar the way kids do

Advanced AI systems can figure out linguistic principles on their own, without first practicing on sentences that humans have labeled for them, according to new research. It's much closer to how human children learn languages long before adults teach them grammar or syntax, the researchers report. Even more surprising, however, they found that the AI model appears to infer "universal" grammatical relationships that apply to many different languages. Imagine you're training a computer with a solid vocabulary and a basic knowledge about parts of speech. How would it understand this sentence: "The chef who ran to the store was out of food"?