If at least one blue chair gives a seating area in the bookstore.
return the  bookstore ;return the  seating area of #1 ;return chairs ;return #3 in  #2 ;return #4 that are blue ;return number of  #5 ;return if  #6 is at least one
['select', 'project', 'select', 'filter', 'filter', 'aggregate', 'boolean']