Question: What position did the man who drowned at a Australian beach named after a naval ship hold?
Sentence (from "Harold Holt"): Harold Edward Holt, {'1': ", '2': ", '3': ", '4': "} ( ; 5 August 190817 December 1967), was an Australian politician and the 17th Prime Minister of Australia from 1966 to 1967.
Relevant evidence: No