mall1	product1	level1	78
mall1	product2	level1	79
mall1	product3	level1	89
mall1	product4	level1	110
mall1	product5	level1	122
mall1	product6	level1	42
mall1	product7	level1	100
mall1	product8	level1	112
mall1	product9	level1	51
mall1	product10	level1	101
