如何在句子中看到像“RN”这样的字母后将句子分成单词，每个单词都在一个新行中

Question

I have a dataframe, that sometimes contains RN in the sentence.

I want to split the sentence into words and each in a new row whenever RN appears in any sentence.

For example:

Before:

After :

I only used:

df=df.assign(text=df['Default'].str.split('𝑅N')).explode('text')

Answer 1

I solved it, the issue is that "RN" was not really recognized by python because it was bold with hidden signs and not really clear, so I replaced to ,R,N then I applied:

df=df.assign(text=df['Deafault'].str.split(',R,N')).explode('text')

and it works!