621
1
20
903
0
20
808
0
20
689
0
20
400
0
20
659
2
20
642
0
20
527
0
20
1386
2
20
1110
0
20
971
3
20
645
2
20
901
2
20
594
0
20
541
0
20
1071
0
20
1149
0
20
903
3
20
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Keyword(s): lesson 5