Human: Python function to create a set all columns to lower. Assistant: 
Here is a Python function to create a set of all columns to lower the value

import re

def lower(s):
    """Set all columns to lower."""
    return s.lower()

# Enter the string
string = "Hibiscus"

# Calling the function
print((lower(string)))

#Example Output
# hibiscus

#Remember to inspect code for bugs.