Original sentence: The 1964 race riots in Singapore followed, such as that on Muhammad's birthday (21 July 1964), near Kallang Gasworks, in which 23 people were killed and hundreds injured as Chinese and Malays attacked each other
Edited sentence: The 1964 race riots in Singapore followed, such as that on Holy Prophet Muhammad's (Peace Be Upon Him) birthday (21 July 1964), near Kallang Gasworks, in which 23 people were killed and hundreds injured as Chinese and Malays attacked each other