The content of these variables must come from the initial column. To answer this question, you must use the stringr library and the concept of regular expressions

data mining

Description

In the prof data table created, add 5 new columns:
- last name
- first name
- title
- area code
- phone
The content of these variables must come from the initial column. To answer this question, you must use the stringr library and the concept of regular expressions

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