820
0
19
594
2
19
1528
2
19
499
4
19
773
0
19
857
0
19
1266
0
19
1084
4
19
714
0
19
570
2
19
660
7
19
483
4
19
606
2
18
771
0
18
533
1
18
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Keyword(s): lesson2