import re
#regex1 : if the text contains the word "founder", replace all text by CEO
#regex 2 : if the text contains 9 digit number , replace it with NUM
def replace_em(text):
if 'founder' in text:
return 'CEO'
elif text.isdigit() and len(text) == 9:
return 'NUM'
else:
return text
print(replace_em("Some founder here"))
print(replace_em("123456789"))
print(replace_em("Some other text"))
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