mall1	product1	level1	123
mall2	product1	level1	131
mall3	product1	level1	142
mall4	product1	level1	139
mall1	product2	level1	153
mall2	product2	level1	144
mall3	product2	level1	142
mall4	product2	level1	148
mall1	product3	level1	72
mall2	product3	level1	77
mall3	product3	level1	72
mall4	product3	level1	74
mall1	product4	level1	134
mall2	product4	level1	136
mall3	product4	level1	135
mall4	product4	level1	119
mall1	product5	level1	92
mall2	product5	level1	97
mall3	product5	level1	85
mall4	product5	level1	96
