639
0
6
590
0
6
707
0
6
304
0
6
266
2
6
321
0
6
576
0
6
551
3
5
367
0
5
252
0
5
350
0
5
331
0
4
203
1
4
283
0
4
244
0
4
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Keyword(s): Lesson7 Presentation