def tokenize(text):
    """Perform tokenization on the given text.
    Given the restriction to use any tokenizer, 
    remove special characters by replace function
    and split the string.

    Args:
        text (str): input string

    Returns:
        [list]: list of tokenized tokens
    """
    # if use of regex is allowed
    # file_content = re.sub(r'[^a-zA-Z0-9\s]', ' ', file_content)
    
    tokens_list =  text.replace('”',' ').replace('“',' ').replace('’',' ').replace('–',' ').split()
    return tokens_list