Question: What is the date of death of Kwa Geok Choo's husband?
Sentence (from "Lee Kuan Yew"): Lee Kuan Yew (16 September 1923 – 23 March 2015), commonly referred to by his initials LKY and sometimes referred to in his earlier years as Harry Lee, was the first Prime Minister of Singapore, governing for three decades.
Relevant evidence: Yes