product     region    salesperson      sales
tractors     NE           joe             1.3
tractors     NW           mary            3.4
trucks       SOUTH        joe             3.2
bicycles     SOUTH        lisa            2.3
canoes       SOUTH        lisa            5.0
bicycles     WEST         mary            1.2
rowboats     NE           joe             3.2
rowboats     SOUTH        bob             2.2
trucks       NW           mary            4.3
canoes       WEST         bob             1.3
 
