Labs 1

Challenge: Match Phone Numbers

1. Paste this at the top of the test string:

YES
800 555-1234
212 777.6789
Phone: 800 555-6879.

NO
1234567891011
abc def-ghij
800 def.ghij
Phone: 1234567891011

Create an RE that matches the phone numbers in the text under YES but not those under NO.

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