我有一个 python df,
DF1 = Index Words Tags
0 I O
1 Love B
2 India I
0 Flowers B
1 are O
2 Beautiful B
我希望输出是
DF1 = Index Words Tags Sent
0 I O 1
1 Love B 1
2 India I 1
0 Flowers B 2
1 are O 2
2 Beautiful B 2
我想要一个df
慕勒3428872
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