Complex sentence: Joel Mandelstam FRS (13 November 1919--20 December 2008) was a British microbiologist, a Professor, at the University of Oxford, and a Fellow of Linacre College, Oxford.
Split into simpler sentences: Joel Mandelstam FRS (13 November 1919--20 December 2008) was a British microbiologist. He was a Professor, at the University of Oxford, and a Fellow of Linacre College, Oxford.