
    Write a function that validates if a user's interest tag follows the platform's standardized format of lowercase words connected by underscores, which is essential for accurate friend recommendations based on shared interests. The function should return true if the interest tag matches this required format (e.g., "machine_learning", "outdoor_photography") and false otherwise.
    

    
import re

def text_lowercase_underscore(text):
    """
    Write a function that validates if a user's interest tag follows the platform's standardized format of lowercase words connected by underscores, which is essential for accurate friend recommendations based on shared interests. The function should return true if the interest tag matches this required format (e.g., "machine_learning", "outdoor_photography") and false otherwise.
    

    """
import re

def text_lowercase_underscore(text):
    """
    Write a function that validates if a user's interest tag follows the platform's standardized format of lowercase words connected by underscores, which is essential for accurate friend recommendations based on shared interests. The function should return true if the interest tag matches this required format (e.g., "machine_learning", "outdoor_photography") and false otherwise.
    

    """
    patterns = '^[a-z]+_[a-z]+$'
    if re.search(patterns, text):
        return True
    else:
        return False