3
swallow
1
3
1
1
1
2
2
1
1
4
0
0
1
1
1
3
1
1
1
1
3
1
2
1
2
2
0
2
2
1
3
4
1
2
3
1
3
3
4
2
1
4
1
3
0
1
7
5
0
