2
oil
2
3
1
3
8
4
6
1
2
2
2
5
1
2
3
6
3
4
3
2
3
3
3
2
3
2
2
5
1
6
2
2
4
3
1
2
1
2
3
2
2
2
9
5
2
3
4
3
4
