1137
0
21
679
0
21
546
0
21
808
1
21
842
0
21
501
0
21
676
0
21
975
2
21
709
0
21
319
0
21
1204
0
21
421
0
21
802
3
21
828
0
21
832
6
21
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Keyword(s): lesson 1