2477
0
68
3192
2
67
887
0
59
3357
5
59
1225
4
54
1350
6
53
1419
8
52
2711
5
50
1782
0
47
2682
1
43
1228
0
41
897
4
38
1055
0
37
1077
0
33
1294
2
33
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Keyword(s): Lesson8 Water Problems