def get_input(prompt):
    """Gets input from the user for a given prompt."""
    user_input = input(prompt)
    return user_input

def get_transformers():
    """Gets a list of transformers from the user."""
    transformers = []
    while True:
        transformer = get_input("Enter a transformer: ")
        if transformer == "":
            break
        transformers.append(transformer)
    return transformers

def generate_text(transformers, prompt, generate_fn):
    """Generates text using the given transformers and prompt."""
    for transformer in transformers:
        output = generate_fn(transformer, prompt)
        yield output