2477
0
68
3195
2
67
891
0
59
3360
5
59
1226
4
54
1353
6
53
1421
8
52
2715
5
50
1785
0
47
2685
1
43
1231
0
41
899
4
38
1055
0
37
1081
0
33
1296
2
33
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Keyword(s): Lesson8 Water Problems