customer_id	customer_name	customer_city	avg_profit
101	Liam	New York	25000
102	Josh	Atlanta	22000
103	Sean	New York	27000
104	Evan	Toronto	15000
105	Toby	Dallas	20000
supplier_id	supplier_name	supplier_city
501	ABC INC	Dallas
502	DCX LTD	Atlanta
503	PUC ENT	New York
504	JCR INC	Toronto
order_id	customer_id	supplier_id	order_date	order_amount
401	103	501	2012-03-08	4500
402	101	503	2012-09-15	3650
403	102	503	2012-06-27	4800
404	104	502	2012-06-17	5600
405	104	504	2012-06-22	6000
406	105	502	2012-06-25	5600
customer_name
Liam
Josh
Sean