1435
2
21
836
1
21
834
0
21
1366
0
21
497
2
21
1223
3
20
551
2
20
688
0
20
571
0
19
356
0
19
748
0
19
1350
2
19
516
0
19
250
0
19
764
0
19
617
0
19
1919
1
19
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Keyword(s): grammar