brand	spreadability	durability
A	2	3
A	3	4
A	6	5
A	4	4
A	3	2
A	4	7
A	3	5
A	2	4
A	5	6
A	3	6
A	3	3
A	4	5
B	5	4
B	4	3
B	7	5
B	3	3
B	4	4
B	5	2
B	4	2
B	5	5
B	6	7
B	5	3
B	6	4
B	6	6