897
2
18
996
0
18
361
0
17
1019
4
17
631
1
17
1004
1
17
315
6
17
539
3
17
350
0
17
748
5
17
650
5
17
693
4
17
1638
0
17
654
1
17
940
0
17
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Keyword(s): lesson1