Complex sentence: He built Somerset Annexe the nucleus of the present science building.Later in 1917, Mr. Hormusji Nosherwanjee Vakeel bought the property and added the east-west wing.
Split into simpler sentences: He built Somerset Annexe, the nucleus of the present science building. In 1917, Hormusji Nosherwanjee Vakeel bought the property and added the east-west wing.