North Lincolnshire is a unitary authority area in the region of Yorkshire and the Humber in England. The population of the Unitary Authority at the 2011 census was 167,446. For ceremonial purposes it is part of Lincolnshire. There are three significant towns: Scunthorpe (the administrative centre), Brigg and Barton-upon-Humber.
The populations of Scunthorpe, Brigg and Barton-upon-Humber totaled 167,446 in 2011.
The original statement indicated that North Lincolnshire has 3 significant towns and that its population was 167,446 . The three significant towns alone could not equal the population for North Lincolnshire.  The AI probably could not tell that other towns would have to be counted in the population total. 