643
1
18
1007
2
18
1097
0
18
412
0
17
1052
4
17
684
1
17
387
0
17
337
6
17
589
3
17
1054
1
17
827
5
17
713
5
17
847
0
17
764
4
17
1764
0
17
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Keyword(s): lesson1