0
nature
4
2
4
2
1
3
1
0
0
1
4
0
7
1
8
5
4
1
5
2
1
2
4
1
0
1
0
1
0
2
0
3
1
2
2
1
2
1
0
3
2
2
3
2
2
2
3
2
2
