Complex sentence: Vi Robbins (born 28 February 1902) is an Australian supercentenarian who became the oldest living person in Australia when Jane Gray died on 7 June 2014.
Split into simpler sentences: Vi Robbins (born 28 February 1902) is an Australian supercentenarian who is the oldest living person in Australia. She assumed the title when Jane Gray died on 7 June 2014.