How many more people lived in Jamestown in 1901 than in 1891?
return Jamestown ;return people in   1901 of #1 ;return people in   1891 of #1 ;return number of  #2 ;return number of  #3 ;return the  difference of #4 and  #5
['select', 'project', 'project', 'aggregate', 'aggregate', 'arithmetic']