0
nature
2
0
3
2
2
2
1
2
2
1
3
2
0
1
0
1
2
3
0
0
1
3
1
3
6
0
6
0
3
3
3
2
1
4
2
1
2
1
1
1
4
3
1
2
1
1
3
0
1
