For instance, English-speaking children understand “The cat ate the rabbit,” and by analogy they also understand “The goat tickled the fairy.” They generalize from hearing one example to another. After enough examples of this kind, they might even be able to guess who did what to whom in the sentence “The gazzer mibbed the toma,” even though some of the words are literally nonsensical. The grammar must be something they discern beyond the words themselves, given that the sentences share little in common at the word level.