Naive way to evaluate text structures using Python 3.x

On Github:https://github.com/ionextdebug/naive-naming-validator

WARN: This is a naive and introductory example about how to validate textual structures using Python 3.x, you can improve it using Hamming Distance Algorithm, String methods, Regular Expressions, and another techniques. This is an introductory, and naive, content coded in minutes.

# -*- coding: utf-8 -*-
"""
Created on Fri Feb  2 17:34:49 2024

@author: ionextdebug

@description: Naive example about how to analyze a text structure,
                in this case the structure <[compound] name> <surname>.


@recommendations:
                - You can improve it using Hamming Distance Algorithm
                - You can apply regular expressions
                - You can refactor this code using Class

"""


valid_names = [
                "Liam",
                "Olivia",
                "Noah",
                "Emma",
                "Oliver",
                "Charlotte",
                "James",
                "Amelia",
                "Elijah",
                "Sophia",
                "William",
                "Isabella",
                "Henry",
                "Ava",
                "Lucas",
                "Mia",
                "Benjamin",
                "Evelyn",
                "Theodore",
                "Luna",
                    ]

valid_surnames = [
                "Smith",
                "Johnson",
                "Williams",
                "Brown",
                "Jones",
                "Garcia",
                "Miller",
                "Davis",
                "Rodriguez",
                "Martinez",
                ]



def is_valid_name(target, reference):
    if target in valid_names:
        return True
    else:
        return False    


def is_valid_surname(target, reference):
    if target in valid_surnames:
        return True
    else:
        return False

def is_valid_name_surname(name, surname):
    return is_valid_name(name, valid_names) and is_valid_surname(surname, valid_surnames)


def is_valid_compound_name_surname(primary_name, secondary_name, surname):
    return is_valid_name(primary_name, valid_names) and is_valid_name(secondary_name, valid_names) and is_valid_surname(surname, valid_surnames)

if __name__ == "__main__":

    text : str = input("Write the name-surname to be tested: ")
    splited_text = text.split(" ")

    match len(splited_text):
        case 0: print("The structure is wrong.")
        case 1: print("The structure is wrong.")
        case 2:
            if is_valid_name_surname(splited_text[0], splited_text[1]): print("Valid name-surname structure.")
            else: print("The structure is wrong.")
        case 3:
            if is_valid_compound_name_surname(splited_text[0], splited_text[1], splited_text[2]): print("Valid compound-name-surname structure.")
            else: print("The structure is wrong.")