Basic topics and objects High frequency words Simple language patterns GRL: D-EFamiliar topics Frequently used words Repeating patterns GRL: F-GNew ideas Larger vocabulary Variety of language structures GRL: G-HChallenges in ideas Expanding vocabulary Wide variety of sentences GRL: G-IMore complex ideas Extended vocabulary range Variety of language structures GRL: S-OWide range of concepts and ideas Challenging vocabulary Complex language structures GRL: N-P