Question: Peter Woolcott, is an Australian public servant and diplomat and the designated Chief of Staff to the 29th, and current Prime Minister of Australia Malcolm Turnbull, commencing on which date?
Sentence (from "Drew Clarke"): Andrew Leigh "Drew" Clarke {'1': ", '2': ", '3': ", '4': "} is a former senior Australian public servant who served as Secretary of several departments and as Chief of Staff to the 29th Prime Minister, Malcolm Turnbull, before his retirement in April 2017.
Relevant evidence: No