Question: Is the letter on the current Rugby World Cup holder's flag the last in the alphabet?, Answer:No, Description of Rugby World Cup: international rugby union competition, Fact1: The current Rugby World Cup holder is South Africa., Fact2: South Africa has a "Y" on its flag., Fact3: "Z" is the last letter of the alphabet.
Step1: What country currently holds the Rugby World Cup?, Step2: What is the letter on #1's flag?, Step3: Is #2 the last letter of the alphabet? , Wikipedia page for step 1: Rugby World Cup, Wikipedia page for step 2: South Africa, Wikipedia page for step 3: , not_definitive_answer: False, incorrect_answer: False