Complex sentence: In June 1971, Genie began to construct her earliest two-word sentences, all of which were modifier-noun or noun-noun constructions such as, "More soup" or, "Genie purse".
Split into simpler sentences: In June 1971, Genie began to construct her earliest two-word sentences. All of them were modifier-noun or noun-noun constructions, such as, "More soup" or, "Genie purse".