text: INSERT INTO category (name) VALUES
    ('Category 1'),
    ('Category 2'),
    ('Category 3'),
    ('Category 4'),
    ('Category 5'),
    ('Category 6');
  
  INSERT INTO product (name, manufacturer, category_id) VALUES
    ('Product 1', 'Manufacturer 1', 1),
    ('Product 2', 'Manufacturer 1', 1),
    ('Product 3', 'Manufacturer 2', 1),
    ('Product 4', 'Manufacturer 3', 1),
    ('Product 5', 'Manufacturer 3', 1),
    ('Product 6', 'Manufacturer 1', 2),
    ('Product 7', 'Manufacturer 2', 2),
    ('Product 8', 'Manufacturer 3', 2),
    ('Product 9', 'Manufacturer 3', 2),
    ('Product 10', 'Manufacturer 4', 3),
    ('Product 11', 'Manufacturer 4', 3),
    ('Product 12', 'Manufacturer 3', 4),
    ('Product 13', 'Manufacturer 4', 5),
    ('Product 14', 'Manufacturer 4', 6);
  