0
natural
3
0
1
4
1
1
1
1
1
2
2
1
2
4
3
3
3
1
3
3
1
1
1
3
3
1
2
2
2
2
0
2
3
4
2
4
2
2
2
1
2
2
3
4
0
1
1
1
5
