SELECT Founder, SUM(Revenue) FROM Products AS T1 JOIN Manufacturers AS T2 ON T1.Manufacturer = T2.Code GROUP BY Founder
For those records from the products and each product's manufacturer, draw a bar chart about the distribution of founder and the sum of revenue , and group by attribute founder.
CREATE TABLE Products (
    Code INTEGER,
    Name VARCHAR(255),
    Price DECIMAL,
    Manufacturer INTEGER
)

CREATE TABLE Manufacturers (
    Code INTEGER,
    Name VARCHAR(255),
    Headquarter VARCHAR(255),
    Founder VARCHAR(255),
    Revenue REAL
)