Complex sentence: The National Headquarters (NHQ) is located at 420 Beach Road and was officially opened on July 23,1960 by the Yang di-Pertuan Negara (and subsequently President of Singapore), Encik Yusof bin Ishak.
Split into simpler sentences: The National Headquarters (NHQ) is located at 420 Beach Road. It was opened on July 23,1960 by the Yang di-Pertuan Negara (and subsequently President of Singapore), Encik Yusof bin Ishak.