基于特定子字符串的python正则表达式提取

我有一个数据框，包含如下句子，但行数更多：

data= {"text":["see you in five minutes.", "she is my friend.", "she goes to school in five minutes."]}

我想按以下方式摘录包含“五分钟”的句子：

desired output:

     first part              desired part     
0    see you in              five minutes.
1    NaN                     NaN
2    she goes to school in   five minutes.

我正在使用以下代码，但它返回NaN：

data.text.str.extract(r"(?i)(?P<before>.*)\s(?P<minutes>(?=five minutes\s))\w+ \w+")    

data.text.str.extract（r“（？i）（？P.*）s（？P（？=5分钟\s））\w+\w+）

如果没有空格，则需要空格：

(?i)(?P<before>.*)\s(?P<minutes>(?=five minutes\s))\w+ \w+
#                                              ^^^

import pandas as pd

data= {"text":["see you in five minutes.", "she is my friend.", "she goes to school in five minutes."]}

df = pd.DataFrame(data)
df2 = df.text.str.extract(r"(?i)(?P<before>.*?)(?=five minutes)(?P<after>.*)")
print(df2)

                   before          after
0             see you in   five minutes.
1                     NaN            NaN
2  she goes to school in   five minutes.