631
2
15
710
1
15
709
1
15
636
0
15
204
0
15
438
0
15
935
0
15
1030
0
15
620
0
15
905
0
15
236
0
15
627
5
15
318
0
15
1264
1
15
549
3
15
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Keyword(s): lesson3