
    Write a function that validates whether a student tracking code follows the school's standardized format of lowercase letters connected by underscores, returning true if the code is valid and false otherwise. The tracking code is used to monitor student performance and attendance patterns in the school's database system.
    

    
import re

def text_lowercase_underscore(text):
    """
    Write a function that validates whether a student tracking code follows the school's standardized format of lowercase letters connected by underscores, returning true if the code is valid and false otherwise. The tracking code is used to monitor student performance and attendance patterns in the school's database system.
    

    """
import re

def text_lowercase_underscore(text):
    """
    Write a function that validates whether a student tracking code follows the school's standardized format of lowercase letters connected by underscores, returning true if the code is valid and false otherwise. The tracking code is used to monitor student performance and attendance patterns in the school's database system.
    

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