mall1	product1	level1	146
mall2	product1	level1	157
mall3	product1	level1	140
mall4	product1	level1	148
mall1	product2	level1	152
mall2	product2	level1	140
mall3	product2	level1	141
mall4	product2	level1	154
mall1	product3	level1	66
mall2	product3	level1	60
mall3	product3	level1	60
mall4	product3	level1	69
mall1	product4	level1	54
mall2	product4	level1	51
mall3	product4	level1	52
mall4	product4	level1	54
mall1	product5	level1	116
mall2	product5	level1	109
mall3	product5	level1	113
mall4	product5	level1	111
