Complex sentence: A plea for clemency from the Dutch government was rejected by the President of Singapore, Ong Teng Cheong, and nor could a letter from Queen Beatrix sent to the President prevent Van Damme from being executed.
Split into simpler sentences: A plea for clemency from the Dutch government was rejected by the President of Singapore, Ong Teng Cheong. Neither could a letter from Queen Beatrix sent to the President prevent Van Damme from being executed.