Complex sentence: In 1978, he studied at Ryde School Horticulture, and in his spare time investigated foods like Davidsonia, riberry, bunya nut and plum pine (Illawarra plum).
Split into simpler sentences: In 1978, he studied at Ryde School Horticulture. In his spare time he investigated foods like Davidsonia, riberry, bunya nut and plum pine (Illawarra plum).