Premise: Elizabeth II ( Elizabeth Alexandra Mary ; born 21 April 1926 ) has been Queen of the United Kingdom , Canada , Australia , and New Zealand since 6 February 1952 . She is the world 's oldest reigning monarch as well as Britain 's longest-lived . In October 2016 , she became the longest currently reigning monarch and head of state following the death of King Bhumibol Adulyadej of Thailand . Elizabeth has occasionally faced republican sentiments and press criticism of the royal family ; however , support for the monarchy remains high , as does her personal popularity .
Hypothesis: Elizabeth II is the world's heaviest elephant.
Label: CONTRADICTION