It is the burial place of Sultan Husain of Johor, who negotiated with Raffles the British rights to Singapore.
The British rights to Singapore were negotiated by Sultan Husain of Johor.
mnli hypothesis: The British rights to Singapore were negotiated by Sultan Husain of Johor. premise: It is the burial place of Sultan Husain of Johor, who negotiated with Raffles the British rights to Singapore.