premise: St Kilda is an inner suburb (neighbourhood) of the metropolitan area of Melbourne, Victoria, Australia, 6 km south-east of Melbourne's Central Business District. Its local government area is the City of Port Phillip. At the 2011 Census, St Kilda had a population of 17,795.
hypothesis: The City of Port Philip has a population of 17,795
reason: We are unsure of the population of Port Philip