Question: What is the date of death of the director of film Jonsun And Gonsun?
Sentence (from "Roy de Silva"): Chathurartha Devadithya Gardiyawasam Lindamulage Roy Aloysius Felix de Silva, popularly known as Roy de Silva (රෝයි ද සිල්වා; 30 August 1937 – 30 June 2018), was a Sri Lankan actor and film director in Sri Lankan cinema.
Relevant evidence: Yes