Complex sentence: Rosalind Elsie Franklin (25 July 192016 April 1958) was an English chemist and X-ray crystallographer who made contributions to the understanding of the fine molecular structures of DNA (deoxyribonucleic acid), RNA (ribonucleic acid), viruses, coal, and graphite.
Split into simpler sentences: Rosalind Elsie Franklin (25 July 192016 April 1958) was an English chemist and X-ray crystallographer. Ms. Franklin made contributions to the understanding of the fine molecular structures of DNA (deoxyribonucleic acid), RNA (ribonucleic acid), viruses, coal, and graphite.