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