2
natural
4
1
4
4
0
3
1
1
2
9
3
2
1
1
0
0
3
0
2
0
2
1
2
1
1
0
0
1
1
3
0
0
3
1
1
0
0
4
1
2
2
3
0
0
1
2
2
1
1
