2477
0
68
3192
2
67
889
0
59
3358
5
59
1226
4
54
1350
6
53
1420
8
52
2712
5
50
1782
0
47
2683
1
43
1229
0
41
897
4
38
1055
0
37
1079
0
33
1295
2
33
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Keyword(s): Lesson8 Water Problems