1488
2
21
794
0
21
1114
2
20
1901
12
20
1368
2
20
220
0
18
376
2
18
472
0
18
589
0
17
852
0
17
323
2
16
682
2
16
785
0
16
625
0
16
565
0
16
570
2
16
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Keyword(s): Lesson8 Water Problems