For 22-year-old Brendan Kelby of Queensland, Australia, the answer is six.
对于22岁的澳大利亚昆士兰人Brendan Kelby来说,答案是6个。
英语百科
Kelby
Kelby is a hamlet in the civil parish of Heydour, in the South Kesteven district of Lincolnshire, England. It lies 5 miles (8km) south-west from Sleaford, 9 miles (14km) north-east from Grantham and 3 miles (5km) south-east from Ancaster. Kelby, with Heydour, Aisby, Oasby and Culverthorpe are the five hamlets within Heydour parish.